chore: update deps & bump version

feature(QMCv2): 通过 SongID 在线查询歌曲信息

.github/workflows/build.yml

@@ -1,7 +1,10 @@
+# yaml-language-server: $schema=https://json.schemastore.org/github-workflow.json
+
 name: Test Build
 on:
   push:
     paths:
+      - ".github/workflows/*"
       - "**/*.js"
       - "**/*.ts"
       - "**/*.vue"
@@ -20,8 +23,23 @@ on:
       - "package.json"
 
 
-
 jobs:
+  test-coverage:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - run: npm ci
+        # note: forks can not access to GITHUB_TOKEN for coverage update.
+        #       instead, we just ran the test in this case.
+      - name: Test only
+        if: github.event_name != 'push'
+        run: npm test
+      - name: Test + Publish Coverage
+        uses: ArtiomTr/jest-coverage-report-action@v2.0-rc.6
+        if: github.event_name == 'push'
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          annotations: none
   build:
     runs-on: ubuntu-latest
     strategy:
@@ -37,40 +55,30 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - name: Use Node.js 14.x
+      - name: Use Node.js 16.x
         uses: actions/setup-node@v2
         with:
-          node-version: "14"
+          node-version: "16"
 
       - name: Install Dependencies
-        run: |
-          npm ci
-          npm run fix-compatibility
+        run: npm ci
 
       - name: Build
-        env:
-          GZIP: "--best"
-        run: |
-          npm run build ${{ matrix.BUILD_ARGS }}
-          tar -czvf dist.tar.gz -C ./dist .
-
-      - name: Build Extension
-        if: ${{ matrix.BUILD_EXTENSION }}
-        run: |
-          npm run make-extension
-          cd dist
-          zip -rJ9 ../extension.zip *
-          cd ..
+        run: npm run build ${{ matrix.BUILD_ARGS }}
 
       - name: Publish artifact
         uses: actions/upload-artifact@v2
         with:
-          name: unlock-music-${{ matrix.build }}.tar.gz
-          path: ./dist.tar.gz
+          name: ${{ matrix.build }}
+          path: ./dist
+
+      - name: Build Extension
+        if: ${{ matrix.BUILD_EXTENSION }}
+        run: npm run make-extension
 
       - name: Publish artifact - Extension
         if: ${{ matrix.BUILD_EXTENSION }}
         uses: actions/upload-artifact@v2
         with:
-          name: extension.zip
-          path: ./extension.zip
+          name: extension
+          path: ./dist

.github/workflows/release-build.yml

@@ -11,15 +11,13 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - name: Use Node.js 14.x
+      - name: Use Node.js 16.x
         uses: actions/setup-node@v2
         with:
-          node-version: "14"
+          node-version: "16"
 
       - name: Install Dependencies
-        run: |
-          npm ci
-          npm run fix-compatibility
+        run: npm ci
 
       - name: Build Legacy
         env:

.gitignore

@@ -1,6 +1,7 @@
 .DS_Store
 node_modules
 /dist
+/coverage
 
 # local env files
 .env.local

.prettierrc.js

@@ -0,0 +1,42 @@
+// .prettierrc.js
+module.exports = {
+  // 一行最多 120 字符
+  printWidth: 120,
+  // 使用 2 个空格缩进
+  tabWidth: 2,
+  // 不使用缩进符，而使用空格
+  useTabs: false,
+  // 行尾需要有分号
+  semi: true,
+  // 使用单引号
+  singleQuote: true,
+  // 对象的 key 仅在必要时用引号
+  quoteProps: 'as-needed',
+  // jsx 不使用单引号，而使用双引号
+  jsxSingleQuote: false,
+  // 末尾需要有逗号
+  trailingComma: 'all',
+  // 大括号内的首尾需要空格
+  bracketSpacing: true,
+  // jsx 标签的反尖括号需要换行
+  bracketSameLine: false,
+  // 箭头函数，只有一个参数的时候，也需要括号
+  arrowParens: 'always',
+  // 每个文件格式化的范围是文件的全部内容
+  rangeStart: 0,
+  rangeEnd: Infinity,
+  // 不需要写文件开头的 @prettier
+  requirePragma: false,
+  // 不需要自动在文件开头插入 @prettier
+  insertPragma: false,
+  // 使用默认的折行标准
+  proseWrap: 'preserve',
+  // 根据显示样式决定 html 要不要折行
+  htmlWhitespaceSensitivity: 'css',
+  // vue 文件中的 script 和 style 内不用缩进
+  vueIndentScriptAndStyle: false,
+  // 换行符使用 lf
+  endOfLine: 'lf',
+  // 格式化嵌入的内容
+  embeddedLanguageFormatting: 'auto',
+};

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2019-2020 MengYX
+Copyright (c) 2019-2021 MengYX
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -1,42 +1,48 @@
 # Unlock Music 音乐解锁
 
 - 在浏览器中解锁加密的音乐文件。 Unlock encrypted music file in the browser.
-- unlock-music项目是以学习和技术研究的初衷创建的，修改、再分发时请遵循[License](https://github.com/ix64/unlock-music/blob/master/LICENSE)
-- Unlock Music的CLI版本正在开发中。
-- 我们新建了Telegram群组，欢迎加入！[https://t.me/unlock_music_chat](https://t.me/unlock_music_chat)
-- [CLI版本 Alpha](https://github.com/unlock-music/cli) 大批量转换建议使用CLI版本
-- [相关的其他项目](https://github.com/ix64/unlock-music/wiki/%E5%92%8CUnlockMusic%E7%9B%B8%E5%85%B3%E7%9A%84%E9%A1%B9%E7%9B%AE)
+- Unlock Music 项目是以学习和技术研究的初衷创建的，修改、再分发时请遵循 [License][license]
+- Unlock Music 的 CLI 版本可以在 [unlock-music/cli][repo_cli] 找到，大批量转换建议使用 CLI 版本。
+- 我们新建了 Telegram 群组 [`@unlock_music_chat`][tg_group] ，欢迎加入！
+- [相关的其他项目][related_projects]
 
-![Test Build](https://github.com/ix64/unlock-music/workflows/Test%20Build/badge.svg)
-![GitHub releases](https://img.shields.io/github/downloads/ix64/unlock-music/total)
+![Test Build](https://github.com/unlock-music/unlock-music/workflows/Test%20Build/badge.svg)
+![GitHub releases](https://img.shields.io/github/downloads/unlock-music/unlock-music/total)
 ![Docker Pulls](https://img.shields.io/docker/pulls/ix64/unlock-music)
 
+[license]: https://github.com/unlock-music/unlock-music/blob/master/LICENSE
+
+[repo_cli]: https://github.com/unlock-music/cli
+
+[tg_group]: https://t.me/unlock_music_chat
+
+[related_projects]: https://github.com/unlock-music/unlock-music/wiki/和UnlockMusic相关的项目
+
 ## 特性
 
 ### 支持的格式
 
-- [x] QQ音乐 (.qmc0/.qmc2/.qmc3/.qmcflac/.qmcogg/[.tkm](https://github.com/ix64/unlock-music/issues/9))
-  - [x] 写入封面图片
-- [x] Moo音乐格式 ([.bkcmp3/.bkcflac](https://github.com/ix64/unlock-music/issues/11))
+- [x] QQ 音乐 (.qmc0/.qmc2/.qmc3/.qmcflac/.qmcogg/.tkm)
+- [x] Moo 音乐格式 (.bkcmp3/.bkcflac/...)
 - [x] QQ 音乐 Tm 格式 (.tm0/.tm2/.tm3/.tm6)
-- [x] QQ音乐新格式 (实验性支持)
-  - [x] .mflac
-  - [x] [.mgg](https://github.com/ix64/unlock-music/issues/3)
-- [x] 网易云音乐格式 (.ncm)
-  - [x] 补全ncm的ID3/FlacMeta信息
-- [x] 虾米音乐格式 (.xm) (测试阶段)
-- [x] 酷我音乐格式 (.kwm) (测试阶段)
-- [x] 酷狗音乐格式 (
-  .kgm) ([CLI版本](https://github.com/ix64/unlock-music/wiki/%E5%85%B6%E4%BB%96%E9%9F%B3%E4%B9%90%E6%A0%BC%E5%BC%8F%E5%B7%A5%E5%85%B7#%E9%85%B7%E7%8B%97%E9%9F%B3%E4%B9%90-kgmvpr%E8%A7%A3%E9%94%81%E5%B7%A5%E5%85%B7))
+- [x] QQ 音乐新格式 (.mflac/.mgg/.mflac0/.mgg1/.mggl)
+- [x] <ruby>QQ 音乐海外版<rt>JOOX Music</rt></ruby> (.ofl_en)
+- [x] 虾米音乐格式 (.xm)
+- [x] 酷我音乐格式 (.kwm)
+- [x] 酷狗音乐格式 (.kgm/.vpr) ([CLI 版本][kgm_cli])
+
+[kgm_cli]: https://github.com/unlock-music/unlock-music/wiki/其他音乐格式工具#酷狗音乐-kgmvpr解锁工具
+
+[joox_wiki]: https://github.com/unlock-music/joox-crypto/wiki/加密格式
 
 ### 其他特性
 
 - [x] 在浏览器中解锁
 - [x] 拖放文件
-- [x] 在线播放
 - [x] 批量解锁
-- [x] 渐进式Web应用
+- [x] 渐进式 Web 应用 (PWA)
 - [x] 多线程
+- [x] 写入Meta和封面图片
 
 ## 使用方法
 
@@ -48,8 +54,8 @@
 
 ### 使用已构建版本
 
-- 从[GitHub Release](https://github.com/ix64/unlock-music/releases/latest)下载已构建的版本
-  - 本地使用请下载`legacy版本`（`modern版本`只能通过**http/https协议**访问）
+- 从[GitHub Release](https://github.com/unlock-music/unlock-music/releases/latest)下载已构建的版本
+  - 本地使用请下载`legacy版本`（`modern版本`只能通过 **http(s)协议** 访问）
 - 解压缩后即可部署或本地使用（**请勿直接运行源代码**）
 
 ### 使用 Docker 镜像
@@ -61,11 +67,25 @@ docker run --name unlock-music -d -p 8080:80 ix64/unlock-music
 ### 自行构建
 
 - 环境要求
-  - nodejs
+  - nodejs (v16.x)
   - npm
 
-1. 获取项目源代码后执行 `npm install` 安装相关依赖
-2. 执行 `npm run build` 即可进行构建，构建输出为 dist 目录
+1. 获取项目源代码后安装相关依赖：
 
-- `npm run serve` 可用于开发
-3. 如需构建浏览器扩展，build完成后还需要执行`npm run make-extension`
+   ```sh
+   npm ci
+   ```
+
+2. 然后进行构建。编译后的文件保存到 dist 目录下：
+
+   ```sh
+   npm run build
+   ```
+
+- 如果是用于开发，可以执行 `npm run serve`。
+
+3. 如需构建浏览器扩展，build 完成后还需要执行：
+
+   ```sh
+   npm run make-extension
+   ```

babel.config.js

@@ -1,6 +1,7 @@
 module.exports = {
     presets: [
-        '@vue/app'
+        '@vue/app',
+        '@babel/preset-typescript'
     ],
     plugins: [
         ["component", {

extension-manifest.json

@@ -6,6 +6,7 @@
     "128": "./img/icons/msapplication-icon-144x144.png"
   },
   "description": "在任何设备上解锁已购的加密音乐！",
+  "permissions": ["storage"],
   "offline_enabled": true,
   "options_page": "./index.html",
   "homepage_url": "https://github.com/ix64/unlock-music",

jest.config.js

@@ -0,0 +1,8 @@
+module.exports = {
+    setupFilesAfterEnv: [
+        './src/__test__/setup_jest.js'
+    ],
+    moduleNameMapper: {
+        '@/(.*)': '<rootDir>/src/$1'
+    }
+};

make-extension.js

@@ -15,6 +15,11 @@ const manifest = JSON.parse(manifestRaw)
 const pkgRaw = fs.readFileSync("./package.json", "utf-8")
 const pkg = JSON.parse(pkgRaw)
 
-manifest["version"] = pkg["version"]
+verExt = pkg["version"]
+if (verExt.startsWith("v")) verExt = verExt.slice(1)
+if (verExt.includes("-")) verExt = verExt.split("-")[0]
+manifest["version"] = `${verExt}.${pkg["ext_build"]}`
+manifest["version_name"] = pkg["version"]
+
 fs.writeFileSync("./dist/manifest.json", JSON.stringify(manifest), "utf-8")
 console.log("Write: manifest.json")

package.json

@@ -1,7 +1,8 @@
 {
   "name": "unlock-music",
-  "version": "v1.9.0",
-  "updateInfo": "新增写入本地文件系统; 优化.kwm解锁; 支持.acc嗅探; 使用Typescript重构",
+  "version": "v1.10.0",
+  "ext_build": 0,
+  "updateInfo": "重写QMC解锁，完全支持.mflac*/.mgg*; 支持JOOX解锁",
   "license": "MIT",
   "description": "Unlock encrypted music file in browser.",
   "repository": {
@@ -10,12 +11,18 @@
   },
   "private": true,
   "scripts": {
+    "postinstall": "patch-package",
     "serve": "vue-cli-service serve",
     "build": "vue-cli-service build",
-    "fix-compatibility": "node ./src/fix-compatibility.js",
+    "test": "jest",
+    "pretty": "prettier --write src/{**/*,*}.{js,ts,jsx,tsx,vue}",
+    "pretty:check": "prettier --check src/{**/*,*}.{js,ts,jsx,tsx,vue}",
     "make-extension": "node ./make-extension.js"
   },
   "dependencies": {
+    "@babel/preset-typescript": "^7.16.5",
+    "@jixun/qmc2-crypto": "^0.0.6-R1",
+    "@unlock-music/joox-crypto": "^0.0.1-R5",
     "base64-js": "^1.5.1",
     "browser-id3-writer": "^4.4.0",
     "core-js": "^3.16.0",
@@ -24,23 +31,28 @@
     "iconv-lite": "^0.6.3",
     "jimp": "^0.16.1",
     "metaflac-js": "^1.0.5",
-    "music-metadata-browser": "^2.4.3",
+    "music-metadata": "7.9.0",
+    "music-metadata-browser": "2.2.7",
     "register-service-worker": "^1.7.2",
     "threads": "^1.6.5",
     "vue": "^2.6.14"
   },
   "devDependencies": {
     "@types/crypto-js": "^4.0.2",
+    "@types/jest": "^27.0.3",
     "@vue/cli-plugin-babel": "^4.5.13",
     "@vue/cli-plugin-pwa": "^4.5.13",
     "@vue/cli-plugin-typescript": "^4.5.13",
     "@vue/cli-service": "^4.5.13",
     "babel-plugin-component": "^1.1.1",
-    "node-sass": "^5.0.0",
+    "jest": "^27.4.5",
+    "patch-package": "^6.4.7",
+    "prettier": "2.5.1",
+    "sass": "^1.38.1",
     "sass-loader": "^10.2.0",
     "semver": "^7.3.5",
     "threads-plugin": "^1.4.0",
-    "typescript": "~4.1.6",
+    "typescript": "^4.5.4",
     "vue-cli-plugin-element": "^1.0.1",
     "vue-template-compiler": "^2.6.14"
   }

patches/threads+1.7.0.patch

@@ -0,0 +1,11 @@
+diff --git a/node_modules/threads/worker.mjs b/node_modules/threads/worker.mjs
+index c53ac7d..619007b 100644
+--- a/node_modules/threads/worker.mjs
++++ b/node_modules/threads/worker.mjs
+@@ -1,4 +1,5 @@
+-import WorkerContext from "./dist/worker/index.js"
++// Workaround: use of import seems to break minifier.
++const WorkerContext = require("./dist/worker/index.js")
+ 
+ export const expose = WorkerContext.expose
+ export const registerSerializer = WorkerContext.registerSerializer

public/index.html

@@ -6,7 +6,7 @@
     <meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible">
     <meta content="width=device-width,initial-scale=1.0" name="viewport">
     <title>音乐解锁</title>
-    <meta content="音乐,解锁,ncm,qmc,mgg,mflac,qq音乐,网易云音乐,加密" name="keywords"/>
+    <meta content="音乐,解锁,qmc,mgg,mflac,qq音乐,加密" name="keywords"/>
     <meta content="音乐解锁 - 在任何设备上解锁已购的加密音乐！" name="description"/>
     <script src="./ixarea-stats.js"></script>
     <!--@formatter:off-->

src/App.vue

@@ -10,12 +10,12 @@
         <a href="https://github.com/ix64/unlock-music/wiki/使用提示" target="_blank">使用提示</a>
       </el-row>
       <el-row>
-                目前支持网易云音乐(ncm), QQ音乐(qmc, mflac, mgg), 酷狗音乐(kgm), 虾米音乐(xm), 酷我音乐(.kwm)
+        目前支持 QQ音乐(qmc, mflac, mgg), 酷狗音乐(kgm), 虾米音乐(xm), 酷我音乐(.kwm)
         <a href="https://github.com/ix64/unlock-music/blob/master/README.md" target="_blank">更多</a>。
       </el-row>
       <el-row>
         <!--如果进行二次开发，此行版权信息不得移除且应明显地标注于页面上-->
-                <span>Copyright &copy; 2019 - {{ (new Date()).getFullYear() }} MengYX</span>
+        <span>Copyright &copy; 2019 - {{ new Date().getFullYear() }} MengYX</span>
         音乐解锁使用
         <a href="https://github.com/ix64/unlock-music/blob/master/LICENSE" target="_blank">MIT许可协议</a>
         开放源代码
@@ -25,46 +25,48 @@
 </template>
 
 <script>
-
-import FileSelector from "@/component/FileSelector"
-import PreviewTable from "@/component/PreviewTable"
-import config from "@/../package.json"
-import Home from "@/view/Home";
-import {checkUpdate} from "@/utils/api";
+import FileSelector from '@/component/FileSelector';
+import PreviewTable from '@/component/PreviewTable';
+import config from '@/../package.json';
+import Home from '@/view/Home';
+import { checkUpdate } from '@/utils/api';
 
 export default {
   name: 'app',
   components: {
     FileSelector,
     PreviewTable,
-        Home
+    Home,
   },
   data() {
     return {
       version: config.version,
-        }
+    };
   },
   created() {
     this.$nextTick(() => this.finishLoad());
   },
   methods: {
     async finishLoad() {
-            const mask = document.getElementById("loader-mask");
+      const mask = document.getElementById('loader-mask');
       if (!!mask) mask.remove();
       let updateInfo;
       try {
-                updateInfo = await checkUpdate(this.version)
+        updateInfo = await checkUpdate(this.version);
       } catch (e) {
-                console.warn("check version info failed", e)
+        console.warn('check version info failed', e);
       }
-            if ((updateInfo && process.env.NODE_ENV === 'production') && (updateInfo.HttpsFound ||
-                (updateInfo.Found && window.location.protocol !== "https:"))) {
+      if (
+        updateInfo &&
+        process.env.NODE_ENV === 'production' &&
+        (updateInfo.HttpsFound || (updateInfo.Found && window.location.protocol !== 'https:'))
+      ) {
         this.$notify.warning({
           title: '发现更新',
           message: `发现新版本 v${updateInfo.Version}<br/>更新详情：${updateInfo.Detail}<br/> <a target="_blank" href="${updateInfo.URL}">获取更新</a>`,
           dangerouslyUseHTMLString: true,
           duration: 15000,
-                    position: 'top-left'
+          position: 'top-left',
         });
       } else {
         this.$notify.info({
@@ -72,14 +74,14 @@ export default {
           message: `我们使用PWA技术，无网络也能使用<br/>最近更新：${config.updateInfo}<br/><a target="_blank" href="https://github.com/ix64/unlock-music/wiki/使用提示">使用提示</a>`,
           dangerouslyUseHTMLString: true,
           duration: 10000,
-                    position: 'top-left'
+          position: 'top-left',
         });
       }
-        }
     },
-}
+  },
+};
 </script>
 
 <style lang="scss">
-@import "scss/unlock-music";
+@import 'scss/unlock-music';
 </style>

src/__test__/setup_jest.js

@@ -0,0 +1,2 @@
+// Polyfill for node.
+global.Blob = global.Blob || require("node:buffer").Blob;

src/component/ConfigDialog.vue

@@ -0,0 +1,113 @@
+<style scoped>
+label {
+  cursor: pointer;
+  line-height: 1.2;
+  display: block;
+}
+.item-desc {
+  color: #aaa;
+  font-size: small;
+  display: block;
+  line-height: 1.2;
+  margin-top: 0.2em;
+}
+.item-desc a {
+  color: #aaa;
+}
+
+form >>> input {
+  font-family: 'Courier New', Courier, monospace;
+}
+
+* >>> .um-config-dialog {
+  max-width: 90%;
+  width: 40em;
+}
+</style>
+
+<template>
+  <el-dialog @close="cancel()" title="解密设定" :visible="show" custom-class="um-config-dialog" center>
+    <el-form ref="form" :rules="rules" status-icon :model="form" label-width="0">
+      <section>
+        <label>
+          <span>
+            JOOX Music ·
+            <Ruby caption="Unique Device Identifier">设备唯一识别码</Ruby>
+          </span>
+          <el-form-item prop="jooxUUID">
+            <el-input type="text" v-model="form.jooxUUID" clearable maxlength="32" show-word-limit> </el-input>
+          </el-form-item>
+        </label>
+
+        <p class="item-desc">
+          下载该加密文件的 JOOX 应用所记录的设备唯一识别码。
+          <br />
+          参见：
+          <a href="https://github.com/unlock-music/joox-crypto/wiki/%E8%8E%B7%E5%8F%96%E8%AE%BE%E5%A4%87-UUID">
+            获取设备 UUID · unlock-music/joox-crypto Wiki</a
+          >。
+        </p>
+      </section>
+    </el-form>
+    <span slot="footer" class="dialog-footer">
+      <el-button type="primary" :loading="saving" @click="emitConfirm()">确 定</el-button>
+    </span>
+  </el-dialog>
+</template>
+
+<script>
+import { storage } from '@/utils/storage';
+import Ruby from './Ruby';
+
+// FIXME: 看起来不会触发这个验证提示？
+function validateJooxUUID(rule, value, callback) {
+  if (!value || !/^[\da-fA-F]{32}$/.test(value)) {
+    callback(new Error('无效的 Joox UUID，请参考 Wiki 获取。'));
+  } else {
+    callback();
+  }
+}
+
+const rules = {
+  jooxUUID: { validator: validateJooxUUID, trigger: 'change' },
+};
+
+export default {
+  components: {
+    Ruby,
+  },
+  props: {
+    show: { type: Boolean, required: true },
+  },
+  data() {
+    return {
+      rules,
+      saving: false,
+      form: {
+        jooxUUID: '',
+      },
+      centerDialogVisible: false,
+    };
+  },
+  async mounted() {
+    await this.resetForm();
+  },
+  methods: {
+    async resetForm() {
+      this.form.jooxUUID = await storage.loadJooxUUID();
+    },
+
+    async cancel() {
+      await this.resetForm();
+      this.$emit('done');
+    },
+
+    async emitConfirm() {
+      this.saving = true;
+      await storage.saveJooxUUID(this.form.jooxUUID);
+      this.saving = false;
+      this.$emit('done');
+    },
+  },
+};
+</script>

src/component/FileSelector.vue

@@ -1,25 +1,17 @@
 <template>
-    <el-upload
-        :auto-upload="false"
-        :on-change="addFile"
-        :show-file-list="false"
-        action=""
-        drag
-        multiple>
+  <el-upload :auto-upload="false" :on-change="addFile" :show-file-list="false" action="" drag multiple>
     <i class="el-icon-upload" />
     <div class="el-upload__text">将文件拖到此处，或<em>点击选择</em></div>
     <div slot="tip" class="el-upload__tip">
       <div>
         仅在浏览器内对文件进行解锁，无需消耗流量
         <el-tooltip effect="dark" placement="top-start">
-                    <div slot="content">
-                        算法在源代码中已经提供，所有运算都发生在本地
-                    </div>
+          <div slot="content">算法在源代码中已经提供，所有运算都发生在本地</div>
           <i class="el-icon-info" style="font-size: 12px" />
         </el-tooltip>
       </div>
       <div>
-                工作模式: {{ parallel ? "多线程 Worker" : "单线程 Queue" }}
+        工作模式: {{ parallel ? '多线程 Worker' : '单线程 Queue' }}
         <el-tooltip effect="dark" placement="top-start">
           <div slot="content">
             将此工具部署在HTTPS环境下，可以启用Web Worker特性，<br />
@@ -29,10 +21,14 @@
         </el-tooltip>
       </div>
     </div>
-        <transition name="el-fade-in"><!--todo: add delay to animation-->
+    <transition name="el-fade-in"
+      ><!--todo: add delay to animation-->
       <el-progress
-                v-show="progress_show" :format="progress_string" :percentage="progress_value"
-                :stroke-width="16" :text-inside="true"
+        v-show="progress_show"
+        :format="progress_string"
+        :percentage="progress_value"
+        :stroke-width="16"
+        :text-inside="true"
         style="margin: 16px 6px 0 6px"
       ></el-progress>
     </transition>
@@ -40,60 +36,56 @@
 </template>
 
 <script>
-import {spawn, Worker, Pool} from "threads"
-import {CommonDecrypt} from "@/decrypt/common.ts";
-import {DecryptQueue} from "@/utils/utils";
+import { spawn, Worker, Pool } from 'threads';
+import { Decrypt } from '@/decrypt';
+import { DecryptQueue } from '@/utils/utils';
+import { storage } from '@/utils/storage';
 
 export default {
-    name: "FileSelector",
+  name: 'FileSelector',
   data() {
     return {
       task_all: 0,
       task_finished: 0,
       queue: new DecryptQueue(), // for http or file protocol
-            parallel: false
-        }
+      parallel: false,
+    };
   },
   computed: {
     progress_value() {
-            return this.task_all ? this.task_finished / this.task_all * 100 : 0
+      return this.task_all ? (this.task_finished / this.task_all) * 100 : 0;
     },
     progress_show() {
-            return this.task_all !== this.task_finished
-        }
+      return this.task_all !== this.task_finished;
+    },
   },
   mounted() {
-        if (window.Worker && window.location.protocol !== "file:" && process.env.NODE_ENV === 'production') {
-            console.log("Using Worker Pool")
-            this.queue = Pool(
-                () => spawn(new Worker('@/utils/worker.ts')),
-                navigator.hardwareConcurrency || 1
-            )
-            this.parallel = true
+    if (window.Worker && window.location.protocol !== 'file:' && process.env.NODE_ENV === 'production') {
+      console.log('Using Worker Pool');
+      this.queue = Pool(() => spawn(new Worker('@/utils/worker.ts')), navigator.hardwareConcurrency || 1);
+      this.parallel = true;
     } else {
-            console.log("Using Queue in Main Thread")
+      console.log('Using Queue in Main Thread');
     }
   },
   methods: {
     progress_string() {
-            return `${this.task_finished} / ${this.task_all}`
+      return `${this.task_finished} / ${this.task_all}`;
     },
     async addFile(file) {
-            this.task_all++
-            this.queue.queue(async (dec = CommonDecrypt) => {
-                console.log("start handling", file.name)
+      this.task_all++;
+      this.queue.queue(async (dec = Decrypt) => {
+        console.log('start handling', file.name);
         try {
-                    this.$emit("success", await dec(file));
+          this.$emit('success', await dec(file, await storage.getAll()));
         } catch (e) {
-                    console.error(e)
-                    this.$emit("error", e, file.name)
+          console.error(e);
+          this.$emit('error', e, file.name);
         } finally {
-                    this.task_finished++
+          this.task_finished++;
         }
-            })
+      });
     },
-    }
-}
-
+  },
+};
 </script>
-

src/component/PreviewTable.vue

@@ -1,12 +1,9 @@
 <template>
   <el-table :data="tableData" style="width: 100%">
-
     <el-table-column label="封面">
       <template slot-scope="scope">
         <el-image :src="scope.row.picture" style="width: 100px; height: 100px">
-                    <div slot="error" class="image-slot el-image__error">
-                        暂无封面
-                    </div>
+          <div slot="error" class="image-slot el-image__error">暂无封面</div>
         </el-image>
       </template>
     </el-table-column>
@@ -27,14 +24,10 @@
     </el-table-column>
     <el-table-column label="操作">
       <template #default="scope">
-                <el-button circle
-                           icon="el-icon-video-play" type="success" @click="handlePlay(scope.$index, scope.row)">
+        <el-button circle icon="el-icon-video-play" type="success" @click="handlePlay(scope.$index, scope.row)">
         </el-button>
-                <el-button circle
-                           icon="el-icon-download" @click="handleDownload(scope.row)">
-                </el-button>
-                <el-button circle
-                           icon="el-icon-delete" type="danger" @click="handleDelete(scope.$index, scope.row)">
+        <el-button circle icon="el-icon-download" @click="handleDownload(scope.row)"></el-button>
+        <el-button circle icon="el-icon-delete" type="danger" @click="handleDelete(scope.$index, scope.row)">
         </el-button>
       </template>
     </el-table-column>
@@ -42,30 +35,28 @@
 </template>
 
 <script>
-import {RemoveBlobMusic} from '@/utils/utils'
+import { RemoveBlobMusic } from '@/utils/utils';
 
 export default {
-    name: "PreviewTable",
+  name: 'PreviewTable',
   props: {
     tableData: { type: Array, required: true },
-        policy: {type: Number, required: true}
+    policy: { type: Number, required: true },
   },
 
   methods: {
     handlePlay(index, row) {
-            this.$emit("play", row.file);
+      this.$emit('play', row.file);
     },
     handleDelete(index, row) {
       RemoveBlobMusic(row);
       this.tableData.splice(index, 1);
     },
     handleDownload(row) {
-            this.$emit("download", row)
+      this.$emit('download', row);
     },
-    }
-}
+  },
+};
 </script>
 
-<style scoped>
-
-</style>
+<style scoped></style>

src/component/Ruby.vue

@@ -0,0 +1,18 @@
+<template>
+  <ruby :title="caption">
+    <slot></slot>
+
+    <rp>（</rp>
+    <rt v-text="caption"></rt>
+    <rp>）</rp>
+  </ruby>
+</template>
+
+<script>
+export default {
+  name: 'Ruby',
+  props: {
+    caption: { type: String, required: true },
+  },
+};
+</script>

src/decrypt/__test__/joox.test.ts

@@ -0,0 +1,52 @@
+import fs from 'fs';
+import { storage } from '@/utils/storage';
+
+import { Decrypt as decryptJoox } from '../joox';
+import { extractQQMusicMeta as extractQQMusicMetaOrig } from '@/utils/qm_meta';
+
+jest.mock('@/utils/storage');
+jest.mock('@/utils/qm_meta');
+
+const loadJooxUUID = storage.loadJooxUUID as jest.MockedFunction<typeof storage.loadJooxUUID>;
+const extractQQMusicMeta = extractQQMusicMetaOrig as jest.MockedFunction<typeof extractQQMusicMetaOrig>;
+
+const TEST_UUID_ZEROS = ''.padStart(32, '0');
+const encryptedFile1 = fs.readFileSync(__dirname + '/fixture/joox_1.bin');
+
+describe('decrypt/joox', () => {
+  it('should be able to decrypt sample file (v4)', async () => {
+    loadJooxUUID.mockResolvedValue(TEST_UUID_ZEROS);
+    extractQQMusicMeta.mockImplementationOnce(async (blob: Blob) => {
+      return {
+        title: 'unused',
+        album: 'unused',
+        blob: blob,
+        artist: 'unused',
+        imgUrl: 'https://github.com/unlock-music',
+      };
+    });
+
+    const result = await decryptJoox(new Blob([encryptedFile1]), 'test.bin', 'bin');
+    const resultBuf = await result.blob.arrayBuffer();
+    expect(resultBuf).toEqual(Buffer.from('Hello World', 'utf-8').buffer);
+  });
+
+  it('should reject E!99 files', async () => {
+    loadJooxUUID.mockResolvedValue(TEST_UUID_ZEROS);
+
+    const input = new Blob([Buffer.from('E!99....')]);
+    await expect(decryptJoox(input, 'test.bin', 'bin')).rejects.toThrow('不支持的 joox 加密格式');
+  });
+
+  it('should reject empty uuid', async () => {
+    loadJooxUUID.mockResolvedValue('');
+    const input = new Blob([encryptedFile1]);
+    await expect(decryptJoox(input, 'test.bin', 'bin')).rejects.toThrow('UUID');
+  });
+
+  it('should reject invalid uuid', async () => {
+    loadJooxUUID.mockResolvedValue('hello!');
+    const input = new Blob([encryptedFile1]);
+    await expect(decryptJoox(input, 'test.bin', 'bin')).rejects.toThrow('UUID');
+  });
+});

src/decrypt/common.ts

@@ -1,79 +0,0 @@
-import {Decrypt as NcmDecrypt} from "@/decrypt/ncm";
-import {Decrypt as NcmCacheDecrypt} from "@/decrypt/ncmcache";
-import {Decrypt as XmDecrypt} from "@/decrypt/xm";
-import {Decrypt as QmcDecrypt} from "@/decrypt/qmc";
-import {Decrypt as QmcCacheDecrypt} from "@/decrypt/qmccache";
-import {Decrypt as KgmDecrypt} from "@/decrypt/kgm";
-import {Decrypt as KwmDecrypt} from "@/decrypt/kwm";
-import {Decrypt as RawDecrypt} from "@/decrypt/raw";
-import {Decrypt as TmDecrypt} from "@/decrypt/tm";
-import {DecryptResult, FileInfo} from "@/decrypt/entity";
-import {SplitFilename} from "@/decrypt/utils";
-
-
-export async function CommonDecrypt(file: FileInfo): Promise<DecryptResult> {
-    const raw = SplitFilename(file.name)
-    let rt_data: DecryptResult;
-    switch (raw.ext) {
-        case "ncm":// Netease Mp3/Flac
-            rt_data = await NcmDecrypt(file.raw, raw.name, raw.ext);
-            break;
-        case "uc":// Netease Cache
-            rt_data = await NcmCacheDecrypt(file.raw, raw.name, raw.ext);
-            break;
-        case "kwm":// Kuwo Mp3/Flac
-            rt_data = await KwmDecrypt(file.raw, raw.name, raw.ext);
-            break
-        case "xm": // Xiami Wav/M4a/Mp3/Flac
-        case "wav":// Xiami/Raw Wav
-        case "mp3":// Xiami/Raw Mp3
-        case "flac":// Xiami/Raw Flac
-        case "m4a":// Xiami/Raw M4a
-            rt_data = await XmDecrypt(file.raw, raw.name, raw.ext);
-            break;
-        case "ogg":// Raw Ogg
-            rt_data = await RawDecrypt(file.raw, raw.name, raw.ext);
-            break;
-        case "tm0":// QQ Music IOS Mp3
-        case "tm3":// QQ Music IOS Mp3
-            rt_data = await RawDecrypt(file.raw, raw.name, "mp3");
-            break;
-        case "qmc3"://QQ Music Android Mp3
-        case "qmc2"://QQ Music Android Ogg
-        case "qmc0"://QQ Music Android Mp3
-        case "qmcflac"://QQ Music Android Flac
-        case "qmcogg"://QQ Music Android Ogg
-        case "tkm"://QQ Music Accompaniment M4a
-        case "bkcmp3"://Moo Music Mp3
-        case "bkcflac"://Moo Music Flac
-        case "mflac"://QQ Music Desktop Flac
-        case "mgg": //QQ Music Desktop Ogg
-        case "666c6163"://QQ Music Weiyun Flac
-        case "6d7033"://QQ Music Weiyun Mp3
-        case "6f6767"://QQ Music Weiyun Ogg
-        case "6d3461"://QQ Music Weiyun M4a
-        case "776176"://QQ Music Weiyun Wav
-            rt_data = await QmcDecrypt(file.raw, raw.name, raw.ext);
-            break;
-        case "tm2":// QQ Music IOS M4a
-        case "tm6":// QQ Music IOS M4a
-            rt_data = await TmDecrypt(file.raw, raw.name);
-            break;
-        case "cache"://QQ Music Cache
-            rt_data = await QmcCacheDecrypt(file.raw, raw.name, raw.ext);
-            break;
-        case "vpr":
-        case "kgm":
-        case "kgma":
-            rt_data = await KgmDecrypt(file.raw, raw.name, raw.ext);
-            break
-        default:
-            throw "不支持此文件格式"
-    }
-
-    if (!rt_data.rawExt) rt_data.rawExt = raw.ext;
-    if (!rt_data.rawFilename) rt_data.rawFilename = raw.name;
-    console.log(rt_data);
-    return rt_data;
-}
-

src/decrypt/entity.ts

@@ -1,26 +1,25 @@
 export interface DecryptResult {
-    title: string
-    album?: string
-    artist?: string
+  title: string;
+  album?: string;
+  artist?: string;
 
-    mime: string
-    ext: string
+  mime: string;
+  ext: string;
 
-    file: string
-    blob: Blob
-    picture?: string
-
-    message?: string
-    rawExt?: string
-    rawFilename?: string
+  file: string;
+  blob: Blob;
+  picture?: string;
 
+  message?: string;
+  rawExt?: string;
+  rawFilename?: string;
 }
 
 export interface FileInfo {
-    status: string
-    name: string,
-    size: number,
-    percentage: number,
-    uid: number,
-    raw: File
+  status: string;
+  name: string;
+  size: number;
+  percentage: number;
+  uid: number;
+  raw: File;
 }

src/decrypt/index.ts

@@ -0,0 +1,90 @@
+import { Decrypt as XmDecrypt } from '@/decrypt/xm';
+import { Decrypt as QmcDecrypt } from '@/decrypt/qmc';
+import { Decrypt as QmcCacheDecrypt } from '@/decrypt/qmccache';
+import { Decrypt as KgmDecrypt } from '@/decrypt/kgm';
+import { Decrypt as KwmDecrypt } from '@/decrypt/kwm';
+import { Decrypt as RawDecrypt } from '@/decrypt/raw';
+import { Decrypt as TmDecrypt } from '@/decrypt/tm';
+import { Decrypt as JooxDecrypt } from '@/decrypt/joox';
+import { DecryptResult, FileInfo } from '@/decrypt/entity';
+import { SplitFilename } from '@/decrypt/utils';
+import { storage } from '@/utils/storage';
+import InMemoryStorage from '@/utils/storage/InMemoryStorage';
+
+export async function Decrypt(file: FileInfo, config: Record<string, any>): Promise<DecryptResult> {
+  // Worker thread will fallback to in-memory storage.
+  if (storage instanceof InMemoryStorage) {
+    await storage.setAll(config);
+  }
+
+  const raw = SplitFilename(file.name);
+  let rt_data: DecryptResult;
+  switch (raw.ext) {
+    case 'kwm': // Kuwo Mp3/Flac
+      rt_data = await KwmDecrypt(file.raw, raw.name, raw.ext);
+      break;
+    case 'xm': // Xiami Wav/M4a/Mp3/Flac
+    case 'wav': // Xiami/Raw Wav
+    case 'mp3': // Xiami/Raw Mp3
+    case 'flac': // Xiami/Raw Flac
+    case 'm4a': // Xiami/Raw M4a
+      rt_data = await XmDecrypt(file.raw, raw.name, raw.ext);
+      break;
+    case 'ogg': // Raw Ogg
+      rt_data = await RawDecrypt(file.raw, raw.name, raw.ext);
+      break;
+    case 'tm0': // QQ Music IOS Mp3
+    case 'tm3': // QQ Music IOS Mp3
+      rt_data = await RawDecrypt(file.raw, raw.name, 'mp3');
+      break;
+    case 'qmc3': //QQ Music Android Mp3
+    case 'qmc2': //QQ Music Android Ogg
+    case 'qmc0': //QQ Music Android Mp3
+    case 'qmcflac': //QQ Music Android Flac
+    case 'qmcogg': //QQ Music Android Ogg
+    case 'tkm': //QQ Music Accompaniment M4a
+    // Moo Music
+    case 'bkcmp3':
+    case 'bkcm4a':
+    case 'bkcflac':
+    case 'bkcwav':
+    case 'bkcape':
+    case 'bkcogg':
+    case 'bkcwma':
+    // QQ Music v2
+    case 'mggl': //QQ Music Mac
+    case 'mflac': //QQ Music New Flac
+    case 'mflac0': //QQ Music New Flac
+    case 'mgg': //QQ Music New Ogg
+    case 'mgg1': //QQ Music New Ogg
+    case '666c6163': //QQ Music Weiyun Flac
+    case '6d7033': //QQ Music Weiyun Mp3
+    case '6f6767': //QQ Music Weiyun Ogg
+    case '6d3461': //QQ Music Weiyun M4a
+    case '776176': //QQ Music Weiyun Wav
+      rt_data = await QmcDecrypt(file.raw, raw.name, raw.ext);
+      break;
+    case 'tm2': // QQ Music IOS M4a
+    case 'tm6': // QQ Music IOS M4a
+      rt_data = await TmDecrypt(file.raw, raw.name);
+      break;
+    case 'cache': //QQ Music Cache
+      rt_data = await QmcCacheDecrypt(file.raw, raw.name, raw.ext);
+      break;
+    case 'vpr':
+    case 'kgm':
+    case 'kgma':
+      rt_data = await KgmDecrypt(file.raw, raw.name, raw.ext);
+      break;
+    case 'ofl_en':
+      rt_data = await JooxDecrypt(file.raw, raw.name, raw.ext);
+      break;
+    default:
+      throw '不支持此文件格式';
+  }
+
+  if (!rt_data.rawExt) rt_data.rawExt = raw.ext;
+  if (!rt_data.rawFilename) rt_data.rawFilename = raw.name;
+  console.log(rt_data);
+  return rt_data;
+}

src/decrypt/joox.ts

@@ -0,0 +1,44 @@
+import jooxFactory from '@unlock-music/joox-crypto';
+
+import { DecryptResult } from './entity';
+import { AudioMimeType, GetArrayBuffer, SniffAudioExt } from './utils';
+
+import { MergeUint8Array } from '@/utils/MergeUint8Array';
+import { storage } from '@/utils/storage';
+import { extractQQMusicMeta } from '@/utils/qm_meta';
+
+export async function Decrypt(file: Blob, raw_filename: string, raw_ext: string): Promise<DecryptResult> {
+  const uuid = await storage.loadJooxUUID('');
+  if (!uuid || uuid.length !== 32) {
+    throw new Error('请在“解密设定”填写应用 Joox 应用的 UUID。');
+  }
+
+  const fileBuffer = new Uint8Array(await GetArrayBuffer(file));
+  const decryptor = jooxFactory(fileBuffer, uuid);
+  if (!decryptor) {
+    throw new Error('不支持的 joox 加密格式');
+  }
+
+  const musicDecoded = MergeUint8Array(decryptor.decryptFile(fileBuffer));
+  const ext = SniffAudioExt(musicDecoded);
+  const mime = AudioMimeType[ext];
+
+  const songId = raw_filename.match(/^(\d+)\s\[mqms\d*]$/i)?.[1];
+  const { album, artist, imgUrl, blob, title } = await extractQQMusicMeta(
+    new Blob([musicDecoded], { type: mime }),
+    raw_filename,
+    ext,
+    songId,
+  );
+
+  return {
+    title: title,
+    artist: artist,
+    ext: ext,
+    album: album,
+    picture: imgUrl,
+    file: URL.createObjectURL(blob),
+    blob: blob,
+    mime: mime,
+  };
+}

src/decrypt/kgm.ts

@@ -4,64 +4,68 @@ import {
   GetArrayBuffer,
   GetCoverFromFile,
   GetMetaFromFile,
-    SniffAudioExt
-} from "@/decrypt/utils.ts";
-import {parseBlob as metaParseBlob} from "music-metadata-browser";
-import {DecryptResult} from "@/decrypt/entity";
-import config from "@/../package.json"
+  SniffAudioExt,
+} from '@/decrypt/utils';
+import { parseBlob as metaParseBlob } from 'music-metadata-browser';
+import { DecryptResult } from '@/decrypt/entity';
+import config from '@/../package.json';
 
+//prettier-ignore
 const VprHeader = [
   0x05, 0x28, 0xBC, 0x96, 0xE9, 0xE4, 0x5A, 0x43,
-    0x91, 0xAA, 0xBD, 0xD0, 0x7A, 0xF5, 0x36, 0x31]
+  0x91, 0xAA, 0xBD, 0xD0, 0x7A, 0xF5, 0x36, 0x31
+]
+//prettier-ignore
 const KgmHeader = [
   0x7C, 0xD5, 0x32, 0xEB, 0x86, 0x02, 0x7F, 0x4B,
-    0xA8, 0xAF, 0xA6, 0x8E, 0x0F, 0xFF, 0x99, 0x14]
+  0xA8, 0xAF, 0xA6, 0x8E, 0x0F, 0xFF, 0x99, 0x14
+]
+//prettier-ignore
 const VprMaskDiff = [
   0x25, 0xDF, 0xE8, 0xA6, 0x75, 0x1E, 0x75, 0x0E,
   0x2F, 0x80, 0xF3, 0x2D, 0xB8, 0xB6, 0xE3, 0x11,
-    0x00]
-
+  0x00
+]
 
 export async function Decrypt(file: File, raw_filename: string, raw_ext: string): Promise<DecryptResult> {
-
   const oriData = new Uint8Array(await GetArrayBuffer(file));
-    if (raw_ext === "vpr") {
-        if (!BytesHasPrefix(oriData, VprHeader)) throw Error("Not a valid vpr file!")
+  if (raw_ext === 'vpr') {
+    if (!BytesHasPrefix(oriData, VprHeader)) throw Error('Not a valid vpr file!');
   } else {
-        if (!BytesHasPrefix(oriData, KgmHeader)) throw Error("Not a valid kgm(a) file!")
+    if (!BytesHasPrefix(oriData, KgmHeader)) throw Error('Not a valid kgm(a) file!');
   }
-    let bHeaderLen = new DataView(oriData.slice(0x10, 0x14).buffer)
-    let headerLen = bHeaderLen.getUint32(0, true)
+  let bHeaderLen = new DataView(oriData.slice(0x10, 0x14).buffer);
+  let headerLen = bHeaderLen.getUint32(0, true);
 
-    let audioData = oriData.slice(headerLen)
-    let dataLen = audioData.length
+  let audioData = oriData.slice(headerLen);
+  let dataLen = audioData.length;
   if (audioData.byteLength > 1 << 26) {
-        throw Error("文件过大，请使用 <a target='_blank' href='https://github.com/unlock-music/cli'>CLI版本</a> 进行解锁")
+    throw Error("文件过大，请使用 <a target='_blank' href='https://github.com/unlock-music/cli'>CLI版本</a> 进行解锁");
   }
 
-    let key1 = new Uint8Array(17)
-    key1.set(oriData.slice(0x1c, 0x2c), 0)
+  let key1 = new Uint8Array(17);
+  key1.set(oriData.slice(0x1c, 0x2c), 0);
   if (MaskV2.length === 0) {
-        if (!await LoadMaskV2()) throw Error("加载Kgm/Vpr Mask数据失败")
+    if (!(await LoadMaskV2())) throw Error('加载Kgm/Vpr Mask数据失败');
   }
 
   for (let i = 0; i < dataLen; i++) {
-        let med8 = key1[i % 17] ^ audioData[i]
-        med8 ^= (med8 & 0xf) << 4
+    let med8 = key1[i % 17] ^ audioData[i];
+    med8 ^= (med8 & 0xf) << 4;
 
-        let msk8 = GetMask(i)
-        msk8 ^= (msk8 & 0xf) << 4
-        audioData[i] = med8 ^ msk8
+    let msk8 = GetMask(i);
+    msk8 ^= (msk8 & 0xf) << 4;
+    audioData[i] = med8 ^ msk8;
   }
-    if (raw_ext === "vpr") {
-        for (let i = 0; i < dataLen; i++) audioData[i] ^= VprMaskDiff[i % 17]
+  if (raw_ext === 'vpr') {
+    for (let i = 0; i < dataLen; i++) audioData[i] ^= VprMaskDiff[i % 17];
   }
 
   const ext = SniffAudioExt(audioData);
   const mime = AudioMimeType[ext];
   let musicBlob = new Blob([audioData], { type: mime });
   const musicMeta = await metaParseBlob(musicBlob);
-    const {title, artist} = GetMetaFromFile(raw_filename, musicMeta.common.title, musicMeta.common.artist)
+  const { title, artist } = GetMetaFromFile(raw_filename, musicMeta.common.title, musicMeta.common.artist);
   return {
     album: musicMeta.common.album,
     picture: GetCoverFromFile(musicMeta),
@@ -70,53 +74,71 @@ export async function Decrypt(file: File, raw_filename: string, raw_ext: string)
     ext,
     mime,
     title,
-        artist
+    artist,
+  };
 }
-}
-
 
 function GetMask(pos: number) {
-    return MaskV2PreDef[pos % 272] ^ MaskV2[pos >> 4]
+  return MaskV2PreDef[pos % 272] ^ MaskV2[pos >> 4];
 }
 
 let MaskV2: Uint8Array = new Uint8Array(0);
 
 async function LoadMaskV2(): Promise<boolean> {
-    let mask_url = `https://cdn.jsdelivr.net/gh/unlock-music/unlock-music@${config.version}/public/static/kgm.mask`
-    if (["http:", "https:"].some(v => v == self.location.protocol)) {
-        if (!!self.document) {// using Web Worker
-            mask_url = "./static/kgm.mask"
-        } else {// using Main thread
-            mask_url = "../static/kgm.mask"
+  let mask_url = `https://cdn.jsdelivr.net/gh/unlock-music/unlock-music@${config.version}/public/static/kgm.mask`;
+  if (['http:', 'https:'].some((v) => v == self.location.protocol)) {
+    if (!!self.document) {
+      // using Web Worker
+      mask_url = './static/kgm.mask';
+    } else {
+      // using Main thread
+      mask_url = '../static/kgm.mask';
     }
   }
   try {
-        const resp = await fetch(mask_url, {method: "GET"})
+    const resp = await fetch(mask_url, { method: 'GET' });
     MaskV2 = new Uint8Array(await resp.arrayBuffer());
-        return true
+    return true;
   } catch (e) {
-        console.error(e)
-        return false
+    console.error(e);
+    return false;
   }
 }
 
+//prettier-ignore
 const MaskV2PreDef = [
-    0xB8, 0xD5, 0x3D, 0xB2, 0xE9, 0xAF, 0x78, 0x8C, 0x83, 0x33, 0x71, 0x51, 0x76, 0xA0, 0xCD, 0x37,
-    0x2F, 0x3E, 0x35, 0x8D, 0xA9, 0xBE, 0x98, 0xB7, 0xE7, 0x8C, 0x22, 0xCE, 0x5A, 0x61, 0xDF, 0x68,
-    0x69, 0x89, 0xFE, 0xA5, 0xB6, 0xDE, 0xA9, 0x77, 0xFC, 0xC8, 0xBD, 0xBD, 0xE5, 0x6D, 0x3E, 0x5A,
-    0x36, 0xEF, 0x69, 0x4E, 0xBE, 0xE1, 0xE9, 0x66, 0x1C, 0xF3, 0xD9, 0x02, 0xB6, 0xF2, 0x12, 0x9B,
-    0x44, 0xD0, 0x6F, 0xB9, 0x35, 0x89, 0xB6, 0x46, 0x6D, 0x73, 0x82, 0x06, 0x69, 0xC1, 0xED, 0xD7,
-    0x85, 0xC2, 0x30, 0xDF, 0xA2, 0x62, 0xBE, 0x79, 0x2D, 0x62, 0x62, 0x3D, 0x0D, 0x7E, 0xBE, 0x48,
-    0x89, 0x23, 0x02, 0xA0, 0xE4, 0xD5, 0x75, 0x51, 0x32, 0x02, 0x53, 0xFD, 0x16, 0x3A, 0x21, 0x3B,
-    0x16, 0x0F, 0xC3, 0xB2, 0xBB, 0xB3, 0xE2, 0xBA, 0x3A, 0x3D, 0x13, 0xEC, 0xF6, 0x01, 0x45, 0x84,
-    0xA5, 0x70, 0x0F, 0x93, 0x49, 0x0C, 0x64, 0xCD, 0x31, 0xD5, 0xCC, 0x4C, 0x07, 0x01, 0x9E, 0x00,
-    0x1A, 0x23, 0x90, 0xBF, 0x88, 0x1E, 0x3B, 0xAB, 0xA6, 0x3E, 0xC4, 0x73, 0x47, 0x10, 0x7E, 0x3B,
-    0x5E, 0xBC, 0xE3, 0x00, 0x84, 0xFF, 0x09, 0xD4, 0xE0, 0x89, 0x0F, 0x5B, 0x58, 0x70, 0x4F, 0xFB,
-    0x65, 0xD8, 0x5C, 0x53, 0x1B, 0xD3, 0xC8, 0xC6, 0xBF, 0xEF, 0x98, 0xB0, 0x50, 0x4F, 0x0F, 0xEA,
-    0xE5, 0x83, 0x58, 0x8C, 0x28, 0x2C, 0x84, 0x67, 0xCD, 0xD0, 0x9E, 0x47, 0xDB, 0x27, 0x50, 0xCA,
-    0xF4, 0x63, 0x63, 0xE8, 0x97, 0x7F, 0x1B, 0x4B, 0x0C, 0xC2, 0xC1, 0x21, 0x4C, 0xCC, 0x58, 0xF5,
-    0x94, 0x52, 0xA3, 0xF3, 0xD3, 0xE0, 0x68, 0xF4, 0x00, 0x23, 0xF3, 0x5E, 0x0A, 0x7B, 0x93, 0xDD,
-    0xAB, 0x12, 0xB2, 0x13, 0xE8, 0x84, 0xD7, 0xA7, 0x9F, 0x0F, 0x32, 0x4C, 0x55, 0x1D, 0x04, 0x36,
-    0x52, 0xDC, 0x03, 0xF3, 0xF9, 0x4E, 0x42, 0xE9, 0x3D, 0x61, 0xEF, 0x7C, 0xB6, 0xB3, 0x93, 0x50,
-]
-
+  0xb8, 0xd5, 0x3d, 0xb2, 0xe9, 0xaf, 0x78, 0x8c,
+  0x83, 0x33, 0x71, 0x51, 0x76, 0xa0, 0xcd, 0x37,
+  0x2f, 0x3e, 0x35, 0x8d, 0xa9, 0xbe, 0x98, 0xb7,
+  0xe7, 0x8c, 0x22, 0xce, 0x5a, 0x61, 0xdf, 0x68,
+  0x69, 0x89, 0xfe, 0xa5, 0xb6, 0xde, 0xa9, 0x77,
+  0xfc, 0xc8, 0xbd, 0xbd, 0xe5, 0x6d, 0x3e, 0x5a,
+  0x36, 0xef, 0x69, 0x4e, 0xbe, 0xe1, 0xe9, 0x66,
+  0x1c, 0xf3, 0xd9, 0x02, 0xb6, 0xf2, 0x12, 0x9b,
+  0x44, 0xd0, 0x6f, 0xb9, 0x35, 0x89, 0xb6, 0x46,
+  0x6d, 0x73, 0x82, 0x06, 0x69, 0xc1, 0xed, 0xd7,
+  0x85, 0xc2, 0x30, 0xdf, 0xa2, 0x62, 0xbe, 0x79,
+  0x2d, 0x62, 0x62, 0x3d, 0x0d, 0x7e, 0xbe, 0x48,
+  0x89, 0x23, 0x02, 0xa0, 0xe4, 0xd5, 0x75, 0x51,
+  0x32, 0x02, 0x53, 0xfd, 0x16, 0x3a, 0x21, 0x3b,
+  0x16, 0x0f, 0xc3, 0xb2, 0xbb, 0xb3, 0xe2, 0xba,
+  0x3a, 0x3d, 0x13, 0xec, 0xf6, 0x01, 0x45, 0x84,
+  0xa5, 0x70, 0x0f, 0x93, 0x49, 0x0c, 0x64, 0xcd,
+  0x31, 0xd5, 0xcc, 0x4c, 0x07, 0x01, 0x9e, 0x00,
+  0x1a, 0x23, 0x90, 0xbf, 0x88, 0x1e, 0x3b, 0xab,
+  0xa6, 0x3e, 0xc4, 0x73, 0x47, 0x10, 0x7e, 0x3b,
+  0x5e, 0xbc, 0xe3, 0x00, 0x84, 0xff, 0x09, 0xd4,
+  0xe0, 0x89, 0x0f, 0x5b, 0x58, 0x70, 0x4f, 0xfb,
+  0x65, 0xd8, 0x5c, 0x53, 0x1b, 0xd3, 0xc8, 0xc6,
+  0xbf, 0xef, 0x98, 0xb0, 0x50, 0x4f, 0x0f, 0xea,
+  0xe5, 0x83, 0x58, 0x8c, 0x28, 0x2c, 0x84, 0x67,
+  0xcd, 0xd0, 0x9e, 0x47, 0xdb, 0x27, 0x50, 0xca,
+  0xf4, 0x63, 0x63, 0xe8, 0x97, 0x7f, 0x1b, 0x4b,
+  0x0c, 0xc2, 0xc1, 0x21, 0x4c, 0xcc, 0x58, 0xf5,
+  0x94, 0x52, 0xa3, 0xf3, 0xd3, 0xe0, 0x68, 0xf4,
+  0x00, 0x23, 0xf3, 0x5e, 0x0a, 0x7b, 0x93, 0xdd,
+  0xab, 0x12, 0xb2, 0x13, 0xe8, 0x84, 0xd7, 0xa7,
+  0x9f, 0x0f, 0x32, 0x4c, 0x55, 0x1d, 0x04, 0x36,
+  0x52, 0xdc, 0x03, 0xf3, 0xf9, 0x4e, 0x42, 0xe9,
+  0x3d, 0x61, 0xef, 0x7c, 0xb6, 0xb3, 0x93, 0x50,
+];

src/decrypt/kwm.ts

@@ -4,42 +4,41 @@ import {
   GetArrayBuffer,
   GetCoverFromFile,
   GetMetaFromFile,
-    SniffAudioExt
-} from "@/decrypt/utils.ts";
-import {Decrypt as RawDecrypt} from "@/decrypt/raw.ts";
+  SniffAudioExt,
+} from '@/decrypt/utils';
+import { Decrypt as RawDecrypt } from '@/decrypt/raw';
 
-import {parseBlob as metaParseBlob} from "music-metadata-browser";
-import {DecryptResult} from "@/decrypt/entity";
+import { parseBlob as metaParseBlob } from 'music-metadata-browser';
+import { DecryptResult } from '@/decrypt/entity';
 
+//prettier-ignore
 const MagicHeader = [
   0x79, 0x65, 0x65, 0x6C, 0x69, 0x6F, 0x6E, 0x2D,
   0x6B, 0x75, 0x77, 0x6F, 0x2D, 0x74, 0x6D, 0x65,
 ]
-const PreDefinedKey = "MoOtOiTvINGwd2E6n0E1i7L5t2IoOoNk"
+const PreDefinedKey = 'MoOtOiTvINGwd2E6n0E1i7L5t2IoOoNk';
 
 export async function Decrypt(file: File, raw_filename: string, _: string): Promise<DecryptResult> {
   const oriData = new Uint8Array(await GetArrayBuffer(file));
   if (!BytesHasPrefix(oriData, MagicHeader)) {
-        if (SniffAudioExt(oriData) === "aac") {
-            return await RawDecrypt(file, raw_filename, "aac", false)
+    if (SniffAudioExt(oriData) === 'aac') {
+      return await RawDecrypt(file, raw_filename, 'aac', false);
     }
-        throw Error("not a valid kwm file")
+    throw Error('not a valid kwm file');
   }
 
-    let fileKey = oriData.slice(0x18, 0x20)
-    let mask = createMaskFromKey(fileKey)
+  let fileKey = oriData.slice(0x18, 0x20);
+  let mask = createMaskFromKey(fileKey);
   let audioData = oriData.slice(0x400);
   let lenAudioData = audioData.length;
-    for (let cur = 0; cur < lenAudioData; ++cur)
-        audioData[cur] ^= mask[cur % 0x20];
-
+  for (let cur = 0; cur < lenAudioData; ++cur) audioData[cur] ^= mask[cur % 0x20];
 
   const ext = SniffAudioExt(audioData);
   const mime = AudioMimeType[ext];
   let musicBlob = new Blob([audioData], { type: mime });
 
   const musicMeta = await metaParseBlob(musicBlob);
-    const {title, artist} = GetMetaFromFile(raw_filename, musicMeta.common.title, musicMeta.common.artist)
+  const { title, artist } = GetMetaFromFile(raw_filename, musicMeta.common.title, musicMeta.common.artist);
   return {
     album: musicMeta.common.album,
     picture: GetCoverFromFile(musicMeta),
@@ -48,30 +47,28 @@ export async function Decrypt(file: File, raw_filename: string, _: string): Prom
     mime,
     title,
     artist,
-        ext
+    ext,
+  };
 }
-}
-
 
 function createMaskFromKey(keyBytes: Uint8Array): Uint8Array {
-    let keyView = new DataView(keyBytes.buffer)
-    let keyStr = keyView.getBigUint64(0, true).toString()
-    let keyStrTrim = trimKey(keyStr)
-    let key = new Uint8Array(32)
+  let keyView = new DataView(keyBytes.buffer);
+  let keyStr = keyView.getBigUint64(0, true).toString();
+  let keyStrTrim = trimKey(keyStr);
+  let key = new Uint8Array(32);
   for (let i = 0; i < 32; i++) {
-        key[i] = PreDefinedKey.charCodeAt(i) ^ keyStrTrim.charCodeAt(i)
+    key[i] = PreDefinedKey.charCodeAt(i) ^ keyStrTrim.charCodeAt(i);
   }
-    return key
+  return key;
 }
 
-
 function trimKey(keyRaw: string): string {
   let lenRaw = keyRaw.length;
   let out = keyRaw;
   if (lenRaw > 32) {
-        out = keyRaw.slice(0, 32)
+    out = keyRaw.slice(0, 32);
   } else if (lenRaw < 32) {
-        out = keyRaw.padEnd(32, keyRaw)
+    out = keyRaw.padEnd(32, keyRaw);
   }
-    return out
+  return out;
 }

src/decrypt/ncm.ts

@@ -1,243 +0,0 @@
-import {
-    AudioMimeType,
-    BytesHasPrefix,
-    GetArrayBuffer,
-    GetImageFromURL,
-    GetMetaFromFile, IMusicMeta,
-    SniffAudioExt,
-    WriteMetaToFlac,
-    WriteMetaToMp3
-} from "@/decrypt/utils.ts";
-import {parseBlob as metaParseBlob} from "music-metadata-browser";
-import jimp from 'jimp';
-
-import AES from "crypto-js/aes";
-import PKCS7 from "crypto-js/pad-pkcs7";
-import ModeECB from "crypto-js/mode-ecb";
-import WordArray from "crypto-js/lib-typedarrays";
-import Base64 from "crypto-js/enc-base64";
-import EncUTF8 from "crypto-js/enc-utf8";
-import EncHex from "crypto-js/enc-hex";
-
-import {DecryptResult} from "@/decrypt/entity";
-
-const CORE_KEY = EncHex.parse("687a4852416d736f356b496e62617857");
-const META_KEY = EncHex.parse("2331346C6A6B5F215C5D2630553C2728");
-const MagicHeader = [0x43, 0x54, 0x45, 0x4E, 0x46, 0x44, 0x41, 0x4D];
-
-
-export async function Decrypt(file: File, raw_filename: string, _: string): Promise<DecryptResult> {
-    return (new NcmDecrypt(await GetArrayBuffer(file), raw_filename)).decrypt()
-}
-
-
-interface NcmMusicMeta {
-    //musicId: number
-    musicName?: string
-    artist?: Array<string | number>[]
-    format?: string
-    album?: string
-    albumPic?: string
-}
-
-interface NcmDjMeta {
-    mainMusic: NcmMusicMeta
-}
-
-
-class NcmDecrypt {
-    raw: ArrayBuffer
-    view: DataView
-    offset: number = 0
-    filename: string
-    format: string = ""
-    mime: string = ""
-    audio?: Uint8Array
-    blob?: Blob
-    oriMeta?: NcmMusicMeta
-    newMeta?: IMusicMeta
-    image?: { mime: string, buffer: ArrayBuffer, url: string }
-
-    constructor(buf: ArrayBuffer, filename: string) {
-        const prefix = new Uint8Array(buf, 0, 8)
-        if (!BytesHasPrefix(prefix, MagicHeader)) throw Error("此ncm文件已损坏")
-        this.offset = 10
-        this.raw = buf
-        this.view = new DataView(buf)
-        this.filename = filename
-    }
-
-    _getKeyData(): Uint8Array {
-        const keyLen = this.view.getUint32(this.offset, true);
-        this.offset += 4;
-        const cipherText = new Uint8Array(this.raw, this.offset, keyLen)
-            .map(uint8 => uint8 ^ 0x64);
-        this.offset += keyLen;
-
-        const plainText = AES.decrypt(
-            // @ts-ignore
-            {ciphertext: WordArray.create(cipherText)},
-            CORE_KEY,
-            {mode: ModeECB, padding: PKCS7}
-        );
-
-        const result = new Uint8Array(plainText.sigBytes);
-
-        const words = plainText.words;
-        const sigBytes = plainText.sigBytes;
-        for (let i = 0; i < sigBytes; i++) {
-            result[i] = (words[i >>> 2] >>> (24 - (i % 4) * 8)) & 0xff;
-        }
-
-        return result.slice(17)
-    }
-
-    _getKeyBox(): Uint8Array {
-        const keyData = this._getKeyData()
-        const box = new Uint8Array(Array(256).keys());
-
-        const keyDataLen = keyData.length;
-
-        let j = 0;
-
-        for (let i = 0; i < 256; i++) {
-            j = (box[i] + j + keyData[i % keyDataLen]) & 0xff;
-            [box[i], box[j]] = [box[j], box[i]];
-        }
-
-        return box.map((_, i, arr) => {
-            i = (i + 1) & 0xff;
-            const si = arr[i];
-            const sj = arr[(i + si) & 0xff];
-            return arr[(si + sj) & 0xff];
-        });
-    }
-
-    _getMetaData(): NcmMusicMeta {
-        const metaDataLen = this.view.getUint32(this.offset, true);
-        this.offset += 4;
-        if (metaDataLen === 0) return {};
-
-        const cipherText = new Uint8Array(this.raw, this.offset, metaDataLen)
-            .map(data => data ^ 0x63);
-        this.offset += metaDataLen;
-
-        WordArray.create()
-        const plainText = AES.decrypt(
-            // @ts-ignore
-            {
-                ciphertext: Base64.parse(
-                    // @ts-ignore
-                    WordArray.create(cipherText.slice(22)).toString(EncUTF8)
-                )
-            },
-            META_KEY,
-            {mode: ModeECB, padding: PKCS7}
-        ).toString(EncUTF8);
-
-        const labelIndex = plainText.indexOf(":");
-        let result: NcmMusicMeta;
-        if (plainText.slice(0, labelIndex) === "dj") {
-            const tmp: NcmDjMeta = JSON.parse(plainText.slice(labelIndex + 1));
-            result = tmp.mainMusic;
-        } else {
-            result = JSON.parse(plainText.slice(labelIndex + 1));
-        }
-        if (!!result.albumPic) {
-            result.albumPic = result.albumPic.replace("http://", "https://") + "?param=500y500"
-        }
-        return result
-    }
-
-    _getAudio(keyBox: Uint8Array): Uint8Array {
-        this.offset += this.view.getUint32(this.offset + 5, true) + 13
-        const audioData = new Uint8Array(this.raw, this.offset)
-        let lenAudioData = audioData.length
-        for (let cur = 0; cur < lenAudioData; ++cur) audioData[cur] ^= keyBox[cur & 0xff]
-        return audioData
-    }
-
-    async _buildMeta() {
-        if (!this.oriMeta) throw Error("invalid sequence")
-
-        const info = GetMetaFromFile(this.filename, this.oriMeta.musicName)
-
-        // build artists
-        let artists: string[] = [];
-        if (!!this.oriMeta.artist) {
-            this.oriMeta.artist.forEach(arr => artists.push(<string>arr[0]));
-        }
-
-        if (artists.length === 0 && !!info.artist) {
-            artists = info.artist.split(',')
-                .map(val => val.trim()).filter(val => val != "");
-        }
-
-        if (this.oriMeta.albumPic) try {
-            this.image = await GetImageFromURL(this.oriMeta.albumPic)
-            while (this.image && this.image.buffer.byteLength >= 1 << 24) {
-                let img = await jimp.read(Buffer.from(this.image.buffer))
-                await img.resize(Math.round(img.getHeight() / 2), jimp.AUTO)
-                this.image.buffer = await img.getBufferAsync("image/jpeg")
-            }
-        } catch (e) {
-            console.log("get cover image failed", e)
-        }
-
-
-        this.newMeta = {title: info.title, artists, album: this.oriMeta.album, picture: this.image?.buffer}
-    }
-
-    async _writeMeta() {
-        if (!this.audio || !this.newMeta) throw Error("invalid sequence")
-
-        if (!this.blob) this.blob = new Blob([this.audio], {type: this.mime})
-        const ori = await metaParseBlob(this.blob);
-
-        let shouldWrite = !ori.common.album && !ori.common.artists && !ori.common.title
-        if (shouldWrite || this.newMeta.picture) {
-            if (this.format === "mp3") {
-                this.audio = WriteMetaToMp3(Buffer.from(this.audio), this.newMeta, ori)
-            } else if (this.format === "flac") {
-                this.audio = WriteMetaToFlac(Buffer.from(this.audio), this.newMeta, ori)
-            } else {
-                console.info(`writing meta for ${this.format} is not being supported for now`)
-                return
-            }
-            this.blob = new Blob([this.audio], {type: this.mime})
-        }
-    }
-
-    gatherResult(): DecryptResult {
-        if (!this.newMeta) throw Error("bad sequence")
-        return {
-            title: this.newMeta.title,
-            artist: this.newMeta.artists?.join("; "),
-            ext: this.format,
-            album: this.newMeta.album,
-            picture: this.image?.url,
-            file: URL.createObjectURL(this.blob),
-            blob: this.blob as Blob,
-            mime: this.mime
-        }
-    }
-
-    async decrypt() {
-        const keyBox = this._getKeyBox()
-        this.oriMeta = this._getMetaData()
-        this.audio = this._getAudio(keyBox)
-        this.format = this.oriMeta.format || SniffAudioExt(this.audio)
-        this.mime = AudioMimeType[this.format]
-        await this._buildMeta()
-        try {
-            await this._writeMeta()
-        } catch (e) {
-            console.warn("write meta data failed", e)
-        }
-        return this.gatherResult()
-    }
-
-
-}
-
-

src/decrypt/ncmcache.ts

@@ -1,29 +0,0 @@
-import {AudioMimeType, GetArrayBuffer, GetCoverFromFile, GetMetaFromFile, SniffAudioExt} from "@/decrypt/utils.ts";
-
-import {DecryptResult} from "@/decrypt/entity";
-
-import {parseBlob as metaParseBlob} from "music-metadata-browser";
-
-export async function Decrypt(file: Blob, raw_filename: string, raw_ext: string)
-    : Promise<DecryptResult> {
-    const buffer = new Uint8Array(await GetArrayBuffer(file));
-    let length = buffer.length
-    for (let i = 0; i < length; i++) {
-        buffer[i] ^= 163
-    }
-    const ext = SniffAudioExt(buffer, raw_ext);
-    if (ext !== raw_ext) file = new Blob([buffer], {type: AudioMimeType[ext]})
-    const tag = await metaParseBlob(file);
-    const {title, artist} = GetMetaFromFile(raw_filename, tag.common.title, tag.common.artist)
-
-    return {
-        title,
-        artist,
-        ext,
-        album: tag.common.album,
-        picture: GetCoverFromFile(tag),
-        file: URL.createObjectURL(file),
-        blob: file,
-        mime: AudioMimeType[ext]
-    }
-}

src/decrypt/qmc.test.ts

@@ -0,0 +1,29 @@
+import fs from 'fs';
+import { QmcDecoder } from '@/decrypt/qmc';
+import { BytesEqual } from '@/decrypt/utils';
+
+function loadTestDataDecoder(name: string): {
+  cipherText: Uint8Array;
+  clearText: Uint8Array;
+} {
+  const cipherBody = fs.readFileSync(`./testdata/${name}_raw.bin`);
+  const cipherSuffix = fs.readFileSync(`./testdata/${name}_suffix.bin`);
+  const cipherText = new Uint8Array(cipherBody.length + cipherSuffix.length);
+  cipherText.set(cipherBody);
+  cipherText.set(cipherSuffix, cipherBody.length);
+  return {
+    cipherText,
+    clearText: fs.readFileSync(`testdata/${name}_target.bin`),
+  };
+}
+
+test('qmc: real file', async () => {
+  const cases = ['mflac0_rc4', 'mflac_rc4', 'mflac_map', 'mgg_map', 'qmc0_static'];
+  for (const name of cases) {
+    const { clearText, cipherText } = loadTestDataDecoder(name);
+    const c = new QmcDecoder(cipherText);
+    const buf = c.decrypt();
+
+    expect(BytesEqual(buf, clearText)).toBeTruthy();
+  }
+});

src/decrypt/qmc.ts

@@ -1,141 +1,171 @@
-import {QmcMask, QmcMaskDetectMflac, QmcMaskDetectMgg, QmcMaskGetDefault} from "./qmcMask";
-import {toByteArray as Base64Decode} from 'base64-js'
-import {
-    AudioMimeType,
-    GetArrayBuffer,
-    GetCoverFromFile,
-    GetImageFromURL,
-    GetMetaFromFile,
-    SniffAudioExt, WriteMetaToFlac, WriteMetaToMp3
-} from "@/decrypt/utils.ts";
-import {parseBlob as metaParseBlob} from "music-metadata-browser";
+import { QmcMapCipher, QmcRC4Cipher, QmcStaticCipher, QmcStreamCipher } from './qmc_cipher';
+import { AudioMimeType, GetArrayBuffer, SniffAudioExt } from '@/decrypt/utils';
 
-
-import iconv from "iconv-lite";
-import {DecryptResult} from "@/decrypt/entity";
-import {queryAlbumCover, queryKeyInfo, reportKeyUsage} from "@/utils/api";
+import { DecryptResult } from '@/decrypt/entity';
+import { QmcDeriveKey } from '@/decrypt/qmc_key';
+import { DecryptQMCWasm } from '@/decrypt/qmc_wasm';
+import { extractQQMusicMeta } from '@/utils/qm_meta';
 
 interface Handler {
-    ext: string
-    detect: boolean
-
-    handler(data?: Uint8Array): QmcMask | undefined
+  ext: string;
+  version: number;
 }
 
 export const HandlerMap: { [key: string]: Handler } = {
-    "mgg": {handler: QmcMaskDetectMgg, ext: "ogg", detect: true},
-    "mflac": {handler: QmcMaskDetectMflac, ext: "flac", detect: true},
-    "mgg.cache": {handler: QmcMaskDetectMgg, ext: "ogg", detect: false},
-    "mflac.cache": {handler: QmcMaskDetectMflac, ext: "flac", detect: false},
-    "qmc0": {handler: QmcMaskGetDefault, ext: "mp3", detect: false},
-    "qmc2": {handler: QmcMaskGetDefault, ext: "ogg", detect: false},
-    "qmc3": {handler: QmcMaskGetDefault, ext: "mp3", detect: false},
-    "qmcogg": {handler: QmcMaskGetDefault, ext: "ogg", detect: false},
-    "qmcflac": {handler: QmcMaskGetDefault, ext: "flac", detect: false},
-    "bkcmp3": {handler: QmcMaskGetDefault, ext: "mp3", detect: false},
-    "bkcflac": {handler: QmcMaskGetDefault, ext: "flac", detect: false},
-    "tkm": {handler: QmcMaskGetDefault, ext: "m4a", detect: false},
-    "666c6163": {handler: QmcMaskGetDefault, ext: "flac", detect: false},
-    "6d7033": {handler: QmcMaskGetDefault, ext: "mp3", detect: false},
-    "6f6767": {handler: QmcMaskGetDefault, ext: "ogg", detect: false},
-    "6d3461": {handler: QmcMaskGetDefault, ext: "m4a", detect: false},
-    "776176": {handler: QmcMaskGetDefault, ext: "wav", detect: false}
+  mgg: { ext: 'ogg', version: 2 },
+  mgg1: { ext: 'ogg', version: 2 },
+  mflac: { ext: 'flac', version: 2 },
+  mflac0: { ext: 'flac', version: 2 },
+
+  // qmcflac / qmcogg:
+  // 有可能是 v2 加密但混用同一个后缀名。
+  qmcflac: { ext: 'flac', version: 2 },
+  qmcogg: { ext: 'ogg', version: 2 },
+
+  qmc0: { ext: 'mp3', version: 1 },
+  qmc2: { ext: 'ogg', version: 1 },
+  qmc3: { ext: 'mp3', version: 1 },
+  bkcmp3: { ext: 'mp3', version: 1 },
+  bkcflac: { ext: 'flac', version: 1 },
+  tkm: { ext: 'm4a', version: 1 },
+  '666c6163': { ext: 'flac', version: 1 },
+  '6d7033': { ext: 'mp3', version: 1 },
+  '6f6767': { ext: 'ogg', version: 1 },
+  '6d3461': { ext: 'm4a', version: 1 },
+  '776176': { ext: 'wav', version: 1 },
 };
 
 export async function Decrypt(file: Blob, raw_filename: string, raw_ext: string): Promise<DecryptResult> {
   if (!(raw_ext in HandlerMap)) throw `Qmc cannot handle type: ${raw_ext}`;
   const handler = HandlerMap[raw_ext];
+  let { version } = handler;
 
-    const fileData = new Uint8Array(await GetArrayBuffer(file));
-    let audioData, seed, keyData;
-    if (handler.detect) {
-        const keyLen = new DataView(fileData.slice(fileData.length - 4).buffer).getUint32(0, true)
-        const keyPos = fileData.length - 4 - keyLen;
-        audioData = fileData.slice(0, keyPos);
-        seed = handler.handler(audioData);
-        keyData = fileData.slice(keyPos, keyPos + keyLen);
-        if (!seed) seed = await queryKey(keyData, raw_filename, raw_ext);
-        if (!seed) throw raw_ext + "格式仅提供实验性支持";
+  const fileBuffer = await GetArrayBuffer(file);
+  let musicDecoded: Uint8Array | undefined;
+  let musicID: number | string | undefined;
+
+  if (version === 2 && globalThis.WebAssembly) {
+    console.log('qmc: using wasm decoder');
+
+    const v2Decrypted = await DecryptQMCWasm(fileBuffer);
+    // 若 v2 检测失败，降级到 v1 再尝试一次
+    if (v2Decrypted.success) {
+      musicDecoded = v2Decrypted.data;
+      musicID = v2Decrypted.songId;
     } else {
-        audioData = fileData;
-        seed = handler.handler(audioData) as QmcMask;
-        if (!seed) throw raw_ext + "格式仅提供实验性支持";
+      console.warn('qmc2-wasm failed with error %s', v2Decrypted.error || '(no error)');
+    }
+  }
+
+  if (!musicDecoded) {
+    // may throw error
+    console.log('qmc: using js decoder');
+    const d = new QmcDecoder(new Uint8Array(fileBuffer));
+    musicDecoded = d.decrypt();
+    musicID = d.songID;
   }
-    let musicDecoded = seed.Decrypt(audioData);
 
   const ext = SniffAudioExt(musicDecoded, handler.ext);
   const mime = AudioMimeType[ext];
 
-    let musicBlob = new Blob([musicDecoded], {type: mime});
+  const { album, artist, imgUrl, blob, title } = await extractQQMusicMeta(
+    new Blob([musicDecoded], { type: mime }),
+    raw_filename,
+    ext,
+    musicID,
+  );
 
-    const musicMeta = await metaParseBlob(musicBlob);
-    for (let metaIdx in musicMeta.native) {
-        if (!musicMeta.native.hasOwnProperty(metaIdx)) continue
-        if (musicMeta.native[metaIdx].some(item => item.id === "TCON" && item.value === "(12)")) {
-            console.warn("try using gbk encoding to decode meta")
-            musicMeta.common.artist = iconv.decode(new Buffer(musicMeta.common.artist ?? ""), "gbk");
-            musicMeta.common.title = iconv.decode(new Buffer(musicMeta.common.title ?? ""), "gbk");
-            musicMeta.common.album = iconv.decode(new Buffer(musicMeta.common.album ?? ""), "gbk");
-        }
-    }
-
-    const info = GetMetaFromFile(raw_filename, musicMeta.common.title, musicMeta.common.artist)
-    if (keyData) reportKeyUsage(keyData, seed.getMatrix128(),
-        raw_filename, raw_ext, info.title, info.artist, musicMeta.common.album).then().catch();
-
-    let imgUrl = GetCoverFromFile(musicMeta);
-    if (!imgUrl) {
-        imgUrl = await getCoverImage(info.title, info.artist, musicMeta.common.album);
-        if (imgUrl) {
-            const imageInfo = await GetImageFromURL(imgUrl);
-            if (imageInfo) {
-                imgUrl = imageInfo.url
-                try {
-                    const newMeta = {picture: imageInfo.buffer, title: info.title, artists: info.artist?.split(" _ ")}
-                    if (ext === "mp3") {
-                        musicDecoded = WriteMetaToMp3(Buffer.from(musicDecoded), newMeta, musicMeta)
-                        musicBlob = new Blob([musicDecoded], {type: mime});
-                    } else if (ext === 'flac') {
-                        musicDecoded = WriteMetaToFlac(Buffer.from(musicDecoded), newMeta, musicMeta)
-                        musicBlob = new Blob([musicDecoded], {type: mime});
-                    } else {
-                        console.info("writing metadata for " + ext + " is not being supported for now")
-                    }
-                } catch (e) {
-                    console.warn("Error while appending cover image to file " + e)
-                }
-            }
-        }
-    }
   return {
-        title: info.title,
-        artist: info.artist,
+    title: title,
+    artist: artist,
     ext: ext,
-        album: musicMeta.common.album,
+    album: album,
     picture: imgUrl,
-        file: URL.createObjectURL(musicBlob),
-        blob: musicBlob,
-        mime: mime
+    file: URL.createObjectURL(blob),
+    blob: blob,
+    mime: mime,
+  };
+}
+
+export class QmcDecoder {
+  private static readonly BYTE_COMMA = ','.charCodeAt(0);
+  private readonly file: Uint8Array;
+  private readonly size: number;
+  private decoded: boolean = false;
+  private audioSize?: number;
+  private cipher?: QmcStreamCipher;
+
+  public constructor(file: Uint8Array) {
+    this.file = file;
+    this.size = file.length;
+    this.searchKey();
+  }
+
+  private _songID?: number;
+
+  public get songID() {
+    return this._songID;
+  }
+
+  public decrypt(): Uint8Array {
+    if (!this.cipher) {
+      throw new Error('no cipher found');
+    }
+    if (!this.audioSize || this.audioSize <= 0) {
+      throw new Error('invalid audio size');
+    }
+    const audioBuf = this.file.subarray(0, this.audioSize);
+
+    if (!this.decoded) {
+      this.cipher.decrypt(audioBuf, 0);
+      this.decoded = true;
+    }
+
+    return audioBuf;
+  }
+
+  private searchKey() {
+    const last4Byte = this.file.slice(-4);
+    const textEnc = new TextDecoder();
+    if (textEnc.decode(last4Byte) === 'QTag') {
+      const sizeBuf = this.file.slice(-8, -4);
+      const sizeView = new DataView(sizeBuf.buffer, sizeBuf.byteOffset);
+      const keySize = sizeView.getUint32(0, false);
+      this.audioSize = this.size - keySize - 8;
+
+      const rawKey = this.file.subarray(this.audioSize, this.size - 8);
+      const keyEnd = rawKey.findIndex((v) => v == QmcDecoder.BYTE_COMMA);
+      if (keyEnd < 0) {
+        throw new Error('invalid key: search raw key failed');
+      }
+      this.setCipher(rawKey.subarray(0, keyEnd));
+
+      const idBuf = rawKey.subarray(keyEnd + 1);
+      const idEnd = idBuf.findIndex((v) => v == QmcDecoder.BYTE_COMMA);
+      if (keyEnd < 0) {
+        throw new Error('invalid key: search song id failed');
+      }
+      this._songID = parseInt(textEnc.decode(idBuf.subarray(0, idEnd)), 10);
+    } else {
+      const sizeView = new DataView(last4Byte.buffer, last4Byte.byteOffset);
+      const keySize = sizeView.getUint32(0, true);
+      if (keySize < 0x300) {
+        this.audioSize = this.size - keySize - 4;
+        const rawKey = this.file.subarray(this.audioSize, this.size - 4);
+        this.setCipher(rawKey);
+      } else {
+        this.audioSize = this.size;
+        this.cipher = new QmcStaticCipher();
+      }
     }
   }
 
-
-async function queryKey(keyData: Uint8Array, filename: string, format: string): Promise<QmcMask | undefined> {
-    try {
-        const data = await queryKeyInfo(keyData, filename, format)
-        return new QmcMask(Base64Decode(data.Matrix44));
-    } catch (e) {
-        console.warn(e);
+  private setCipher(keyRaw: Uint8Array) {
+    const keyDec = QmcDeriveKey(keyRaw);
+    if (keyDec.length > 300) {
+      this.cipher = new QmcRC4Cipher(keyDec);
+    } else {
+      this.cipher = new QmcMapCipher(keyDec);
     }
   }
-
-async function getCoverImage(title: string, artist?: string, album?: string): Promise<string> {
-    const song_query_url = "https://stats.ixarea.com/apis" + "/music/qq-cover"
-    try {
-        const data = await queryAlbumCover(title, artist, album)
-        return `${song_query_url}/${data.Type}/${data.Id}`
-    } catch (e) {
-        console.warn(e);
-    }
-    return ""
 }

src/decrypt/qmcMask.ts

@@ -1,206 +0,0 @@
-import {BytesHasPrefix, FLAC_HEADER, OGG_HEADER} from "@/decrypt/utils.ts";
-
-const QMOggPublicHeader1 = [
-    0x4f, 0x67, 0x67, 0x53, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff,
-    0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x01, 0x1e, 0x01, 0x76, 0x6f, 0x72,
-    0x62, 0x69, 0x73, 0x00, 0x00, 0x00, 0x00, 0x02, 0x44, 0xac, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-    0x00, 0xee, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb8, 0x01, 0x4f, 0x67, 0x67, 0x53, 0x00, 0x00,
-    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00,
-    0xff, 0xff, 0xff, 0xff];
-const QMOggPublicHeader2 = [
-    0x03, 0x76, 0x6f, 0x72, 0x62, 0x69, 0x73, 0x2c, 0x00, 0x00, 0x00, 0x58, 0x69, 0x70, 0x68, 0x2e,
-    0x4f, 0x72, 0x67, 0x20, 0x6c, 0x69, 0x62, 0x56, 0x6f, 0x72, 0x62, 0x69, 0x73, 0x20, 0x49, 0x20,
-    0x32, 0x30, 0x31, 0x35, 0x30, 0x31, 0x30, 0x35, 0x20, 0x28, 0xe2, 0x9b, 0x84, 0xe2, 0x9b, 0x84,
-    0xe2, 0x9b, 0x84, 0xe2, 0x9b, 0x84, 0x29, 0xff, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x54,
-    0x49, 0x54, 0x4c, 0x45, 0x3d];
-const QMOggPublicConf1 = [
-    9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 0, 0,
-    0, 0, 9, 9, 9, 9, 0, 0, 0, 0, 9, 9, 9, 9, 9, 9,
-    9, 9, 9, 9, 9, 9, 9, 6, 3, 3, 3, 3, 6, 6, 6, 6,
-    3, 3, 3, 3, 6, 6, 6, 6, 6, 9, 9, 9, 9, 9, 9, 9,
-    9, 9, 9, 9, 9, 9, 9, 9, 0, 0, 0, 0, 9, 9, 9, 9,
-    0, 0, 0, 0];
-const QMOggPublicConf2 = [
-    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
-    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
-    3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
-    3, 3, 3, 3, 3, 3, 3, 0, 1, 3, 3, 0, 1, 3, 3, 3,
-    3, 3, 3, 3, 3];
-const QMCDefaultMaskMatrix = [
-    0xde, 0x51, 0xfa, 0xc3, 0x4a, 0xd6, 0xca, 0x90,
-    0x7e, 0x67, 0x5e, 0xf7, 0xd5, 0x52, 0x84, 0xd8,
-    0x47, 0x95, 0xbb, 0xa1, 0xaa, 0xc6, 0x66, 0x23,
-    0x92, 0x62, 0xf3, 0x74, 0xa1, 0x9f, 0xf4, 0xa0,
-    0x1d, 0x3f, 0x5b, 0xf0, 0x13, 0x0e, 0x09, 0x3d,
-    0xf9, 0xbc, 0x00, 0x11];
-
-
-const AllMapping: number[][] = [];
-const Mask128to44: number[] = [];
-
-(function () {
-    for (let i = 0; i < 128; i++) {
-        let realIdx = (i * i + 27) % 256
-        if (realIdx in AllMapping) {
-            AllMapping[realIdx].push(i)
-        } else {
-            AllMapping[realIdx] = [i]
-        }
-    }
-
-    let idx44 = 0
-    AllMapping.forEach(all128 => {
-        all128.forEach(_i128 => {
-            Mask128to44[_i128] = idx44
-        })
-        idx44++
-    })
-})();
-
-
-export class QmcMask {
-    private readonly Matrix128: number[];
-
-    constructor(matrix: number[] | Uint8Array) {
-        if (matrix instanceof Uint8Array) matrix = Array.from(matrix)
-        if (matrix.length === 44) {
-            this.Matrix128 = this._generate128(matrix)
-        } else if (matrix.length === 128) {
-            this.Matrix128 = matrix
-        } else {
-            throw Error("invalid mask length")
-        }
-    }
-
-    getMatrix128() {
-        return this.Matrix128
-    }
-
-    getMatrix44(): number[] {
-        const matrix44: number[] = []
-        let idxI44 = 0
-        AllMapping.forEach(it256 => {
-            let it256Len = it256.length
-            for (let i = 1; i < it256Len; i++) {
-                if (this.Matrix128[it256[0]] !== this.Matrix128[it256[i]]) {
-                    throw "decode mask-128 to mask-44 failed"
-                }
-            }
-            matrix44[idxI44] = this.Matrix128[it256[0]]
-            idxI44++
-        })
-        return matrix44
-    }
-
-    Decrypt(data: Uint8Array) {
-        if (!this.Matrix128) throw Error("bad call sequence")
-        let dst = data.slice(0);
-        let index = -1;
-        let maskIdx = -1;
-        for (let cur = 0; cur < data.length; cur++) {
-            index++;
-            maskIdx++;
-            if (index === 0x8000 || (index > 0x8000 && (index + 1) % 0x8000 === 0)) {
-                index++;
-                maskIdx++;
-            }
-            if (maskIdx >= 128) maskIdx -= 128;
-            dst[cur] ^= this.Matrix128[maskIdx];
-        }
-        return dst;
-    }
-
-    private _generate128(matrix44: number[]): number[] {
-        const matrix128: number[] = []
-        let idx44 = 0
-        AllMapping.forEach(it256 => {
-            it256.forEach(m => {
-                matrix128[m] = matrix44[idx44]
-            })
-            idx44++
-        })
-        return matrix128
-    }
-}
-
-export function QmcMaskGetDefault() {
-    return new QmcMask(QMCDefaultMaskMatrix)
-}
-
-export function QmcMaskDetectMflac(data: Uint8Array) {
-    let search_len = Math.min(0x8000, data.length), mask;
-    for (let block_idx = 0; block_idx < search_len; block_idx += 128) {
-        try {
-            mask = new QmcMask(data.slice(block_idx, block_idx + 128));
-            if (BytesHasPrefix(mask.Decrypt(data.slice(0, FLAC_HEADER.length)), FLAC_HEADER)) {
-                break;
-            }
-        } catch (e) {
-        }
-    }
-    return mask;
-}
-
-export function QmcMaskDetectMgg(data: Uint8Array) {
-    if (data.length < 0x100) return
-    let matrixConfidence: { [key: number]: { [key: number]: number } } = {};
-    for (let i = 0; i < 44; i++) matrixConfidence[i] = {};
-
-    const page2 = data[0x54] ^ data[0xC] ^ QMOggPublicHeader1[0xC];
-    const spHeader = QmcGenerateOggHeader(page2)
-    const spConf = QmcGenerateOggConf(page2)
-
-    for (let idx128 = 0; idx128 < spHeader.length; idx128++) {
-        if (spConf[idx128] === 0) continue;
-        let idx44 = Mask128to44[idx128 % 128];
-        let _m = data[idx128] ^ spHeader[idx128]
-        let confidence = spConf[idx128];
-        if (_m in matrixConfidence[idx44]) {
-            matrixConfidence[idx44][_m] += confidence
-        } else {
-            matrixConfidence[idx44][_m] = confidence
-        }
-    }
-    let matrix = [];
-    try {
-        for (let i = 0; i < 44; i++)
-            matrix[i] = calcMaskFromConfidence(matrixConfidence[i]);
-    } catch (e) {
-        return;
-    }
-    const mask = new QmcMask(matrix);
-    if (!BytesHasPrefix(mask.Decrypt(data.slice(0, OGG_HEADER.length)), OGG_HEADER)) {
-        return;
-    }
-    return mask;
-}
-
-
-function calcMaskFromConfidence(confidence: { [key: number]: number }) {
-    const count = Object.keys(confidence).length
-    if (count === 0) throw "can not match at least one key";
-    if (count > 1) console.warn("There are 2 potential value for the mask!")
-    let result = ""
-    let conf = 0
-    for (let idx in confidence) {
-        if (confidence[idx] > conf) {
-            result = idx;
-            conf = confidence[idx];
-        }
-    }
-    return Number(result)
-}
-
-function QmcGenerateOggHeader(page2: number) {
-    let spec = [page2, 0xFF]
-    for (let i = 2; i < page2; i++) spec.push(0xFF)
-    spec.push(0xFF)
-    return QMOggPublicHeader1.concat(spec, QMOggPublicHeader2)
-}
-
-function QmcGenerateOggConf(page2: number) {
-    let specConf = [6, 0]
-    for (let i = 2; i < page2; i++) specConf.push(4)
-    specConf.push(0)
-    return QMOggPublicConf1.concat(specConf, QMOggPublicConf2)
-}

src/decrypt/qmc_cipher.test.ts

@@ -0,0 +1,117 @@
+import { QmcMapCipher, QmcRC4Cipher, QmcStaticCipher } from '@/decrypt/qmc_cipher';
+import fs from 'fs';
+
+test('static cipher [0x7ff8,0x8000) ', () => {
+  //prettier-ignore
+  const expected = new Uint8Array([
+    0xD8, 0x52, 0xF7, 0x67, 0x90, 0xCA, 0xD6, 0x4A,
+    0x4A, 0xD6, 0xCA, 0x90, 0x67, 0xF7, 0x52, 0xD8,
+  ])
+
+  const c = new QmcStaticCipher();
+  const buf = new Uint8Array(16);
+  c.decrypt(buf, 0x7ff8);
+
+  expect(buf).toStrictEqual(expected);
+});
+
+test('static cipher [0,0x10) ', () => {
+  //prettier-ignore
+  const expected = new Uint8Array([
+    0xC3, 0x4A, 0xD6, 0xCA, 0x90, 0x67, 0xF7, 0x52,
+    0xD8, 0xA1, 0x66, 0x62, 0x9F, 0x5B, 0x09, 0x00,
+  ])
+
+  const c = new QmcStaticCipher();
+  const buf = new Uint8Array(16);
+  c.decrypt(buf, 0);
+
+  expect(buf).toStrictEqual(expected);
+});
+
+test('map cipher: get mask', () => {
+  //prettier-ignore
+  const expected = new Uint8Array([
+    0xBB, 0x7D, 0x80, 0xBE, 0xFF, 0x38, 0x81, 0xFB,
+    0xBB, 0xFF, 0x82, 0x3C, 0xFF, 0xBA, 0x83, 0x79,
+  ])
+  const key = new Uint8Array(256);
+  for (let i = 0; i < 256; i++) key[i] = i;
+  const buf = new Uint8Array(16);
+
+  const c = new QmcMapCipher(key);
+  c.decrypt(buf, 0);
+  expect(buf).toStrictEqual(expected);
+});
+
+function loadTestDataCipher(name: string): {
+  key: Uint8Array;
+  cipherText: Uint8Array;
+  clearText: Uint8Array;
+} {
+  return {
+    key: fs.readFileSync(`testdata/${name}_key.bin`),
+    cipherText: fs.readFileSync(`testdata/${name}_raw.bin`),
+    clearText: fs.readFileSync(`testdata/${name}_target.bin`),
+  };
+}
+
+test('map cipher: real file', async () => {
+  const cases = ['mflac_map', 'mgg_map'];
+  for (const name of cases) {
+    const { key, clearText, cipherText } = loadTestDataCipher(name);
+    const c = new QmcMapCipher(key);
+
+    c.decrypt(cipherText, 0);
+
+    expect(cipherText).toStrictEqual(clearText);
+  }
+});
+
+test('rc4 cipher: real file', async () => {
+  const cases = ['mflac0_rc4', 'mflac_rc4'];
+  for (const name of cases) {
+    const { key, clearText, cipherText } = loadTestDataCipher(name);
+    const c = new QmcRC4Cipher(key);
+
+    c.decrypt(cipherText, 0);
+
+    expect(cipherText).toStrictEqual(clearText);
+  }
+});
+
+test('rc4 cipher: first segment', async () => {
+  const cases = ['mflac0_rc4', 'mflac_rc4'];
+  for (const name of cases) {
+    const { key, clearText, cipherText } = loadTestDataCipher(name);
+    const c = new QmcRC4Cipher(key);
+
+    const buf = cipherText.slice(0, 128);
+    c.decrypt(buf, 0);
+    expect(buf).toStrictEqual(clearText.slice(0, 128));
+  }
+});
+
+test('rc4 cipher: align block (128~5120)', async () => {
+  const cases = ['mflac0_rc4', 'mflac_rc4'];
+  for (const name of cases) {
+    const { key, clearText, cipherText } = loadTestDataCipher(name);
+    const c = new QmcRC4Cipher(key);
+
+    const buf = cipherText.slice(128, 5120);
+    c.decrypt(buf, 128);
+    expect(buf).toStrictEqual(clearText.slice(128, 5120));
+  }
+});
+
+test('rc4 cipher: simple block (5120~10240)', async () => {
+  const cases = ['mflac0_rc4', 'mflac_rc4'];
+  for (const name of cases) {
+    const { key, clearText, cipherText } = loadTestDataCipher(name);
+    const c = new QmcRC4Cipher(key);
+
+    const buf = cipherText.slice(5120, 10240);
+    c.decrypt(buf, 5120);
+    expect(buf).toStrictEqual(clearText.slice(5120, 10240));
+  }
+});

src/decrypt/qmc_cipher.ts

@@ -0,0 +1,199 @@
+export interface QmcStreamCipher {
+  decrypt(buf: Uint8Array, offset: number): void;
+}
+
+export class QmcStaticCipher implements QmcStreamCipher {
+  //prettier-ignore
+  private static readonly staticCipherBox: Uint8Array = new Uint8Array([
+    0x77, 0x48, 0x32, 0x73, 0xDE, 0xF2, 0xC0, 0xC8, //0x00
+    0x95, 0xEC, 0x30, 0xB2, 0x51, 0xC3, 0xE1, 0xA0, //0x08
+    0x9E, 0xE6, 0x9D, 0xCF, 0xFA, 0x7F, 0x14, 0xD1, //0x10
+    0xCE, 0xB8, 0xDC, 0xC3, 0x4A, 0x67, 0x93, 0xD6, //0x18
+    0x28, 0xC2, 0x91, 0x70, 0xCA, 0x8D, 0xA2, 0xA4, //0x20
+    0xF0, 0x08, 0x61, 0x90, 0x7E, 0x6F, 0xA2, 0xE0, //0x28
+    0xEB, 0xAE, 0x3E, 0xB6, 0x67, 0xC7, 0x92, 0xF4, //0x30
+    0x91, 0xB5, 0xF6, 0x6C, 0x5E, 0x84, 0x40, 0xF7, //0x38
+    0xF3, 0x1B, 0x02, 0x7F, 0xD5, 0xAB, 0x41, 0x89, //0x40
+    0x28, 0xF4, 0x25, 0xCC, 0x52, 0x11, 0xAD, 0x43, //0x48
+    0x68, 0xA6, 0x41, 0x8B, 0x84, 0xB5, 0xFF, 0x2C, //0x50
+    0x92, 0x4A, 0x26, 0xD8, 0x47, 0x6A, 0x7C, 0x95, //0x58
+    0x61, 0xCC, 0xE6, 0xCB, 0xBB, 0x3F, 0x47, 0x58, //0x60
+    0x89, 0x75, 0xC3, 0x75, 0xA1, 0xD9, 0xAF, 0xCC, //0x68
+    0x08, 0x73, 0x17, 0xDC, 0xAA, 0x9A, 0xA2, 0x16, //0x70
+    0x41, 0xD8, 0xA2, 0x06, 0xC6, 0x8B, 0xFC, 0x66, //0x78
+    0x34, 0x9F, 0xCF, 0x18, 0x23, 0xA0, 0x0A, 0x74, //0x80
+    0xE7, 0x2B, 0x27, 0x70, 0x92, 0xE9, 0xAF, 0x37, //0x88
+    0xE6, 0x8C, 0xA7, 0xBC, 0x62, 0x65, 0x9C, 0xC2, //0x90
+    0x08, 0xC9, 0x88, 0xB3, 0xF3, 0x43, 0xAC, 0x74, //0x98
+    0x2C, 0x0F, 0xD4, 0xAF, 0xA1, 0xC3, 0x01, 0x64, //0xA0
+    0x95, 0x4E, 0x48, 0x9F, 0xF4, 0x35, 0x78, 0x95, //0xA8
+    0x7A, 0x39, 0xD6, 0x6A, 0xA0, 0x6D, 0x40, 0xE8, //0xB0
+    0x4F, 0xA8, 0xEF, 0x11, 0x1D, 0xF3, 0x1B, 0x3F, //0xB8
+    0x3F, 0x07, 0xDD, 0x6F, 0x5B, 0x19, 0x30, 0x19, //0xC0
+    0xFB, 0xEF, 0x0E, 0x37, 0xF0, 0x0E, 0xCD, 0x16, //0xC8
+    0x49, 0xFE, 0x53, 0x47, 0x13, 0x1A, 0xBD, 0xA4, //0xD0
+    0xF1, 0x40, 0x19, 0x60, 0x0E, 0xED, 0x68, 0x09, //0xD8
+    0x06, 0x5F, 0x4D, 0xCF, 0x3D, 0x1A, 0xFE, 0x20, //0xE0
+    0x77, 0xE4, 0xD9, 0xDA, 0xF9, 0xA4, 0x2B, 0x76, //0xE8
+    0x1C, 0x71, 0xDB, 0x00, 0xBC, 0xFD, 0x0C, 0x6C, //0xF0
+    0xA5, 0x47, 0xF7, 0xF6, 0x00, 0x79, 0x4A, 0x11, //0xF8
+  ])
+
+  public getMask(offset: number) {
+    if (offset > 0x7fff) offset %= 0x7fff;
+    return QmcStaticCipher.staticCipherBox[(offset * offset + 27) & 0xff];
+  }
+
+  public decrypt(buf: Uint8Array, offset: number) {
+    for (let i = 0; i < buf.length; i++) {
+      buf[i] ^= this.getMask(offset + i);
+    }
+  }
+}
+
+export class QmcMapCipher implements QmcStreamCipher {
+  key: Uint8Array;
+  n: number;
+
+  constructor(key: Uint8Array) {
+    if (key.length == 0) throw Error('qmc/cipher_map: invalid key size');
+
+    this.key = key;
+    this.n = key.length;
+  }
+
+  private static rotate(value: number, bits: number) {
+    let rotate = (bits + 4) % 8;
+    let left = value << rotate;
+    let right = value >> rotate;
+    return (left | right) & 0xff;
+  }
+
+  decrypt(buf: Uint8Array, offset: number): void {
+    for (let i = 0; i < buf.length; i++) {
+      buf[i] ^= this.getMask(offset + i);
+    }
+  }
+
+  private getMask(offset: number) {
+    if (offset > 0x7fff) offset %= 0x7fff;
+
+    const idx = (offset * offset + 71214) % this.n;
+    return QmcMapCipher.rotate(this.key[idx], idx & 0x7);
+  }
+}
+
+export class QmcRC4Cipher implements QmcStreamCipher {
+  private static readonly FIRST_SEGMENT_SIZE = 0x80;
+  private static readonly SEGMENT_SIZE = 5120;
+
+  S: Uint8Array;
+  N: number;
+  key: Uint8Array;
+  hash: number;
+
+  constructor(key: Uint8Array) {
+    if (key.length == 0) {
+      throw Error('invalid key size');
+    }
+
+    this.key = key;
+    this.N = key.length;
+
+    // init seed box
+    this.S = new Uint8Array(this.N);
+    for (let i = 0; i < this.N; ++i) {
+      this.S[i] = i & 0xff;
+    }
+    let j = 0;
+    for (let i = 0; i < this.N; ++i) {
+      j = (this.S[i] + j + this.key[i % this.N]) % this.N;
+      [this.S[i], this.S[j]] = [this.S[j], this.S[i]];
+    }
+
+    // init hash base
+    this.hash = 1;
+    for (let i = 0; i < this.N; i++) {
+      let value = this.key[i];
+
+      // ignore if key char is '\x00'
+      if (!value) continue;
+
+      const next_hash = (this.hash * value) >>> 0;
+      if (next_hash == 0 || next_hash <= this.hash) break;
+
+      this.hash = next_hash;
+    }
+  }
+
+  decrypt(buf: Uint8Array, offset: number): void {
+    let toProcess = buf.length;
+    let processed = 0;
+    const postProcess = (len: number): boolean => {
+      toProcess -= len;
+      processed += len;
+      offset += len;
+      return toProcess == 0;
+    };
+
+    // Initial segment
+    if (offset < QmcRC4Cipher.FIRST_SEGMENT_SIZE) {
+      const len_segment = Math.min(buf.length, QmcRC4Cipher.FIRST_SEGMENT_SIZE - offset);
+      this.encFirstSegment(buf.subarray(0, len_segment), offset);
+      if (postProcess(len_segment)) return;
+    }
+
+    // align segment
+    if (offset % QmcRC4Cipher.SEGMENT_SIZE != 0) {
+      const len_segment = Math.min(QmcRC4Cipher.SEGMENT_SIZE - (offset % QmcRC4Cipher.SEGMENT_SIZE), toProcess);
+      this.encASegment(buf.subarray(processed, processed + len_segment), offset);
+      if (postProcess(len_segment)) return;
+    }
+
+    // Batch process segments
+    while (toProcess > QmcRC4Cipher.SEGMENT_SIZE) {
+      this.encASegment(buf.subarray(processed, processed + QmcRC4Cipher.SEGMENT_SIZE), offset);
+      postProcess(QmcRC4Cipher.SEGMENT_SIZE);
+    }
+
+    // Last segment (incomplete segment)
+    if (toProcess > 0) {
+      this.encASegment(buf.subarray(processed), offset);
+    }
+  }
+
+  private encFirstSegment(buf: Uint8Array, offset: number) {
+    for (let i = 0; i < buf.length; i++) {
+      buf[i] ^= this.key[this.getSegmentKey(offset + i)];
+    }
+  }
+
+  private encASegment(buf: Uint8Array, offset: number) {
+    // Initialise a new seed box
+    const S = this.S.slice(0);
+
+    // Calculate the number of bytes to skip.
+    // The initial "key" derived from segment id, plus the current offset.
+    const skipLen =
+      (offset % QmcRC4Cipher.SEGMENT_SIZE) + this.getSegmentKey(Math.floor(offset / QmcRC4Cipher.SEGMENT_SIZE));
+
+    // decrypt the block
+    let j = 0;
+    let k = 0;
+    for (let i = -skipLen; i < buf.length; i++) {
+      j = (j + 1) % this.N;
+      k = (S[j] + k) % this.N;
+      [S[k], S[j]] = [S[j], S[k]];
+
+      if (i >= 0) {
+        buf[i] ^= S[(S[j] + S[k]) % this.N];
+      }
+    }
+  }
+
+  private getSegmentKey(id: number): number {
+    const seed = this.key[id % this.N];
+    const idx = Math.floor((this.hash / ((id + 1) * seed)) * 100.0);
+    return idx % this.N;
+  }
+}

src/decrypt/qmc_key.test.ts

@@ -0,0 +1,26 @@
+import { QmcDeriveKey, simpleMakeKey } from '@/decrypt/qmc_key';
+import fs from 'fs';
+
+test('key dec: make simple key', () => {
+  expect(simpleMakeKey(106, 8)).toStrictEqual([0x69, 0x56, 0x46, 0x38, 0x2b, 0x20, 0x15, 0x0b]);
+});
+
+function loadTestDataKeyDecrypt(name: string): {
+  cipherText: Uint8Array;
+  clearText: Uint8Array;
+} {
+  return {
+    cipherText: fs.readFileSync(`testdata/${name}_key_raw.bin`),
+    clearText: fs.readFileSync(`testdata/${name}_key.bin`),
+  };
+}
+
+test('key dec: real file', async () => {
+  const cases = ['mflac_map', 'mgg_map', 'mflac0_rc4', 'mflac_rc4'];
+  for (const name of cases) {
+    const { clearText, cipherText } = loadTestDataKeyDecrypt(name);
+    const buf = QmcDeriveKey(cipherText);
+
+    expect(buf).toStrictEqual(clearText);
+  }
+});

src/decrypt/qmc_key.ts

@@ -0,0 +1,103 @@
+import { TeaCipher } from '@/utils/tea';
+
+const SALT_LEN = 2;
+const ZERO_LEN = 7;
+
+export function QmcDeriveKey(raw: Uint8Array): Uint8Array {
+  const textDec = new TextDecoder();
+  const rawDec = Buffer.from(textDec.decode(raw), 'base64');
+  let n = rawDec.length;
+  if (n < 16) {
+    throw Error('key length is too short');
+  }
+
+  const simpleKey = simpleMakeKey(106, 8);
+  let teaKey = new Uint8Array(16);
+  for (let i = 0; i < 8; i++) {
+    teaKey[i << 1] = simpleKey[i];
+    teaKey[(i << 1) + 1] = rawDec[i];
+  }
+  const sub = decryptTencentTea(rawDec.subarray(8), teaKey);
+  rawDec.set(sub, 8);
+  return rawDec.subarray(0, 8 + sub.length);
+}
+
+// simpleMakeKey exported only for unit test
+export function simpleMakeKey(salt: number, length: number): number[] {
+  const keyBuf: number[] = [];
+  for (let i = 0; i < length; i++) {
+    const tmp = Math.tan(salt + i * 0.1);
+    keyBuf[i] = 0xff & (Math.abs(tmp) * 100.0);
+  }
+  return keyBuf;
+}
+
+function decryptTencentTea(inBuf: Uint8Array, key: Uint8Array): Uint8Array {
+  if (inBuf.length % 8 != 0) {
+    throw Error('inBuf size not a multiple of the block size');
+  }
+  if (inBuf.length < 16) {
+    throw Error('inBuf size too small');
+  }
+
+  const blk = new TeaCipher(key, 32);
+
+  const tmpBuf = new Uint8Array(8);
+  const tmpView = new DataView(tmpBuf.buffer);
+
+  blk.decrypt(tmpView, new DataView(inBuf.buffer, inBuf.byteOffset, 8));
+
+  const nPadLen = tmpBuf[0] & 0x7; //只要最低三位
+  /*密文格式:PadLen(1byte)+Padding(var,0-7byte)+Salt(2byte)+Body(var byte)+Zero(7byte)*/
+  const outLen = inBuf.length - 1 /*PadLen*/ - nPadLen - SALT_LEN - ZERO_LEN;
+  const outBuf = new Uint8Array(outLen);
+
+  let ivPrev = new Uint8Array(8);
+  let ivCur = inBuf.slice(0, 8); // init iv
+  let inBufPos = 8;
+
+  // 跳过 Padding Len 和 Padding
+  let tmpIdx = 1 + nPadLen;
+
+  // CBC IV 处理
+  const cryptBlock = () => {
+    ivPrev = ivCur;
+    ivCur = inBuf.slice(inBufPos, inBufPos + 8);
+    for (let j = 0; j < 8; j++) {
+      tmpBuf[j] ^= ivCur[j];
+    }
+    blk.decrypt(tmpView, tmpView);
+    inBufPos += 8;
+    tmpIdx = 0;
+  };
+
+  // 跳过 Salt
+  for (let i = 1; i <= SALT_LEN; ) {
+    if (tmpIdx < 8) {
+      tmpIdx++;
+      i++;
+    } else {
+      cryptBlock();
+    }
+  }
+
+  // 还原明文
+  let outBufPos = 0;
+  while (outBufPos < outLen) {
+    if (tmpIdx < 8) {
+      outBuf[outBufPos] = tmpBuf[tmpIdx] ^ ivPrev[tmpIdx];
+      outBufPos++;
+      tmpIdx++;
+    } else {
+      cryptBlock();
+    }
+  }
+
+  // 校验Zero
+  for (let i = 1; i <= ZERO_LEN; i++) {
+    if (tmpBuf[tmpIdx] != ivPrev[tmpIdx]) {
+      throw Error('zero check failed');
+    }
+  }
+  return outBuf;
+}

src/decrypt/qmc_wasm.ts

@@ -0,0 +1,111 @@
+import QMCCryptoModule from '@jixun/qmc2-crypto/QMC2-wasm-bundle';
+import { MergeUint8Array } from '@/utils/MergeUint8Array';
+import { QMCCrypto } from '@jixun/qmc2-crypto/QMCCrypto';
+
+// 检测文件末端使用的缓冲区大小
+const DETECTION_SIZE = 40;
+
+// 每次处理 2M 的数据
+const DECRYPTION_BUF_SIZE = 2 * 1024 * 1024;
+
+export interface QMC2DecryptionResult {
+  success: boolean;
+  data: Uint8Array;
+  songId: string | number;
+  error: string;
+}
+
+/**
+ * 解密一个 QMC2 加密的文件。
+ *
+ * 如果检测并解密成功，返回解密后的 Uint8Array 数据。
+ * @param  {ArrayBuffer} mggBlob 读入的文件 Blob
+ */
+export async function DecryptQMCWasm(mggBlob: ArrayBuffer): Promise<QMC2DecryptionResult> {
+  const result: QMC2DecryptionResult = { success: false, data: new Uint8Array(), songId: 0, error: '' };
+
+  // 初始化模组
+  let QMCCrypto: QMCCrypto;
+
+  try {
+    QMCCrypto = await QMCCryptoModule();
+  } catch (err: any) {
+    result.error = err?.message || 'wasm 加载失败';
+    return result;
+  }
+
+  // 申请内存块，并文件末端数据到 WASM 的内存堆
+  const detectionBuf = new Uint8Array(mggBlob.slice(-DETECTION_SIZE));
+  const pDetectionBuf = QMCCrypto._malloc(detectionBuf.length);
+  QMCCrypto.writeArrayToMemory(detectionBuf, pDetectionBuf);
+
+  // 检测结果内存块
+  const pDetectionResult = QMCCrypto._malloc(QMCCrypto.sizeof_qmc_detection());
+
+  // 进行检测
+  const detectOK = QMCCrypto.detectKeyEndPosition(pDetectionResult, pDetectionBuf, detectionBuf.length);
+
+  // 提取结构体内容：
+  // (pos: i32; len: i32; error: char[??])
+  const position = QMCCrypto.getValue(pDetectionResult, 'i32');
+  const len = QMCCrypto.getValue(pDetectionResult + 4, 'i32');
+
+  result.success = detectOK;
+  result.error = QMCCrypto.UTF8ToString(
+    pDetectionResult + QMCCrypto.offsetof_error_msg(),
+    QMCCrypto.sizeof_error_msg(),
+  );
+  const songId = QMCCrypto.UTF8ToString(pDetectionResult + QMCCrypto.offsetof_song_id(), QMCCrypto.sizeof_song_id());
+  if (!songId) {
+    console.debug('qmc2-wasm: songId not found');
+  } else if (/^\d+$/.test(songId)) {
+    result.songId = songId;
+  } else {
+    console.warn('qmc2-wasm: Invalid songId: %s', songId);
+  }
+
+  // 释放内存
+  QMCCrypto._free(pDetectionBuf);
+  QMCCrypto._free(pDetectionResult);
+
+  if (!detectOK) {
+    return result;
+  }
+
+  // 计算解密后文件的大小。
+  // 之前得到的 position 为相对当前检测数据起点的偏移。
+  const decryptedSize = mggBlob.byteLength - DETECTION_SIZE + position;
+
+  // 提取嵌入到文件的 EKey
+  const ekey = new Uint8Array(mggBlob.slice(decryptedSize, decryptedSize + len));
+
+  // 解码 UTF-8 数据到 string
+  const decoder = new TextDecoder();
+  const ekey_b64 = decoder.decode(ekey);
+
+  // 初始化加密与缓冲区
+  const hCrypto = QMCCrypto.createInstWidthEKey(ekey_b64);
+  const buf = QMCCrypto._malloc(DECRYPTION_BUF_SIZE);
+
+  const decryptedParts = [];
+  let offset = 0;
+  let bytesToDecrypt = decryptedSize;
+  while (bytesToDecrypt > 0) {
+    const blockSize = Math.min(bytesToDecrypt, DECRYPTION_BUF_SIZE);
+
+    // 解密一些片段
+    const blockData = new Uint8Array(mggBlob.slice(offset, offset + blockSize));
+    QMCCrypto.writeArrayToMemory(blockData, buf);
+    QMCCrypto.decryptStream(hCrypto, buf, offset, blockSize);
+    decryptedParts.push(QMCCrypto.HEAPU8.slice(buf, buf + blockSize));
+
+    offset += blockSize;
+    bytesToDecrypt -= blockSize;
+  }
+  QMCCrypto._free(buf);
+  hCrypto.delete();
+
+  result.data = MergeUint8Array(decryptedParts);
+
+  return result;
+}

src/decrypt/qmccache.ts

@@ -4,39 +4,38 @@ import {
   GetCoverFromFile,
   GetMetaFromFile,
   SniffAudioExt,
-    SplitFilename
-} from "@/decrypt/utils.ts";
+  SplitFilename,
+} from '@/decrypt/utils';
 
-import {Decrypt as QmcDecrypt, HandlerMap} from "@/decrypt/qmc";
+import { Decrypt as QmcDecrypt, HandlerMap } from '@/decrypt/qmc';
 
-import {DecryptResult} from "@/decrypt/entity";
+import { DecryptResult } from '@/decrypt/entity';
 
-import {parseBlob as metaParseBlob} from "music-metadata-browser";
+import { parseBlob as metaParseBlob } from 'music-metadata-browser';
 
-export async function Decrypt(file: Blob, raw_filename: string, _: string)
-    : Promise<DecryptResult> {
+export async function Decrypt(file: Blob, raw_filename: string, _: string): Promise<DecryptResult> {
   const buffer = new Uint8Array(await GetArrayBuffer(file));
-    let length = buffer.length
+  let length = buffer.length;
   for (let i = 0; i < length; i++) {
-        buffer[i] ^= 0xf4
+    buffer[i] ^= 0xf4;
     if (buffer[i] <= 0x3f) buffer[i] = buffer[i] * 4;
     else if (buffer[i] <= 0x7f) buffer[i] = (buffer[i] - 0x40) * 4 + 1;
     else if (buffer[i] <= 0xbf) buffer[i] = (buffer[i] - 0x80) * 4 + 2;
     else buffer[i] = (buffer[i] - 0xc0) * 4 + 3;
   }
-    let ext = SniffAudioExt(buffer, "");
-    const newName = SplitFilename(raw_filename)
-    let audioBlob: Blob
-    if (ext !== "" || newName.ext === "mp3") {
-        audioBlob = new Blob([buffer], {type: AudioMimeType[ext]})
+  let ext = SniffAudioExt(buffer, '');
+  const newName = SplitFilename(raw_filename);
+  let audioBlob: Blob;
+  if (ext !== '' || newName.ext === 'mp3') {
+    audioBlob = new Blob([buffer], { type: AudioMimeType[ext] });
   } else if (newName.ext in HandlerMap) {
-        audioBlob = new Blob([buffer], {type: "application/octet-stream"})
+    audioBlob = new Blob([buffer], { type: 'application/octet-stream' });
     return QmcDecrypt(audioBlob, newName.name, newName.ext);
   } else {
-        throw "不支持的QQ音乐缓存格式"
+    throw '不支持的QQ音乐缓存格式';
   }
   const tag = await metaParseBlob(audioBlob);
-    const {title, artist} = GetMetaFromFile(raw_filename, tag.common.title, tag.common.artist)
+  const { title, artist } = GetMetaFromFile(raw_filename, tag.common.title, tag.common.artist);
 
   return {
     title,
@@ -46,6 +45,6 @@ export async function Decrypt(file: Blob, raw_filename: string, _: string)
     picture: GetCoverFromFile(tag),
     file: URL.createObjectURL(audioBlob),
     blob: audioBlob,
-        mime: AudioMimeType[ext]
-    }
+    mime: AudioMimeType[ext],
+  };
 }

src/decrypt/raw.ts

@@ -1,19 +1,23 @@
-import {AudioMimeType, GetArrayBuffer, GetCoverFromFile, GetMetaFromFile, SniffAudioExt} from "@/decrypt/utils.ts";
+import { AudioMimeType, GetArrayBuffer, GetCoverFromFile, GetMetaFromFile, SniffAudioExt } from '@/decrypt/utils';
 
-import {DecryptResult} from "@/decrypt/entity";
+import { DecryptResult } from '@/decrypt/entity';
 
-import {parseBlob as metaParseBlob} from "music-metadata-browser";
+import { parseBlob as metaParseBlob } from 'music-metadata-browser';
 
-export async function Decrypt(file: Blob, raw_filename: string, raw_ext: string, detect: boolean = true)
-    : Promise<DecryptResult> {
+export async function Decrypt(
+  file: Blob,
+  raw_filename: string,
+  raw_ext: string,
+  detect: boolean = true,
+): Promise<DecryptResult> {
   let ext = raw_ext;
   if (detect) {
     const buffer = new Uint8Array(await GetArrayBuffer(file));
     ext = SniffAudioExt(buffer, raw_ext);
-        if (ext !== raw_ext) file = new Blob([buffer], {type: AudioMimeType[ext]})
+    if (ext !== raw_ext) file = new Blob([buffer], { type: AudioMimeType[ext] });
   }
   const tag = await metaParseBlob(file);
-    const {title, artist} = GetMetaFromFile(raw_filename, tag.common.title, tag.common.artist)
+  const { title, artist } = GetMetaFromFile(raw_filename, tag.common.title, tag.common.artist);
 
   return {
     title,
@@ -23,6 +27,6 @@ export async function Decrypt(file: Blob, raw_filename: string, raw_ext: string,
     picture: GetCoverFromFile(tag),
     file: URL.createObjectURL(file),
     blob: file,
-        mime: AudioMimeType[ext]
-    }
+    mime: AudioMimeType[ext],
+  };
 }

src/decrypt/tm.ts

@@ -1,6 +1,6 @@
-import {Decrypt as RawDecrypt} from "./raw";
-import {GetArrayBuffer} from "@/decrypt/utils.ts";
-import {DecryptResult} from "@/decrypt/entity";
+import { Decrypt as RawDecrypt } from './raw';
+import { GetArrayBuffer } from '@/decrypt/utils';
+import { DecryptResult } from '@/decrypt/entity';
 
 const TM_HEADER = [0x00, 0x00, 0x00, 0x20, 0x66, 0x74, 0x79, 0x70];
 
@@ -9,6 +9,6 @@ export async function Decrypt(file: File, raw_filename: string): Promise<Decrypt
   for (let cur = 0; cur < 8; ++cur) {
     audioData[cur] = TM_HEADER[cur];
   }
-    const musicData = new Blob([audioData], {type: "audio/mp4"});
-    return await RawDecrypt(musicData, raw_filename, "m4a", false)
+  const musicData = new Blob([audioData], { type: 'audio/mp4' });
+  return await RawDecrypt(musicData, raw_filename, 'm4a', false);
 }

src/decrypt/utils.ts

@@ -1,61 +1,66 @@
-import {IAudioMetadata} from "music-metadata-browser";
-import ID3Writer from "browser-id3-writer";
-import MetaFlac from "metaflac-js";
+import { IAudioMetadata } from 'music-metadata-browser';
+import ID3Writer from 'browser-id3-writer';
+import MetaFlac from 'metaflac-js';
 
-export const FLAC_HEADER = [0x66, 0x4C, 0x61, 0x43];
+export const FLAC_HEADER = [0x66, 0x4c, 0x61, 0x43];
 export const MP3_HEADER = [0x49, 0x44, 0x33];
-export const OGG_HEADER = [0x4F, 0x67, 0x67, 0x53];
+export const OGG_HEADER = [0x4f, 0x67, 0x67, 0x53];
 export const M4A_HEADER = [0x66, 0x74, 0x79, 0x70];
+//prettier-ignore
 export const WMA_HEADER = [
-    0x30, 0x26, 0xB2, 0x75, 0x8E, 0x66, 0xCF, 0x11,
-    0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C,
-]
-export const WAV_HEADER = [0x52, 0x49, 0x46, 0x46]
-export const AAC_HEADER = [0xFF, 0xF1]
-export const DFF_HEADER = [0x46, 0x52, 0x4D, 0x38]
+  0x30, 0x26, 0xb2, 0x75, 0x8e, 0x66, 0xcf, 0x11,
+  0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c,
+];
+export const WAV_HEADER = [0x52, 0x49, 0x46, 0x46];
+export const AAC_HEADER = [0xff, 0xf1];
+export const DFF_HEADER = [0x46, 0x52, 0x4d, 0x38];
 
 export const AudioMimeType: { [key: string]: string } = {
-    mp3: "audio/mpeg",
-    flac: "audio/flac",
-    m4a: "audio/mp4",
-    ogg: "audio/ogg",
-    wma: "audio/x-ms-wma",
-    wav: "audio/x-wav",
-    dff: "audio/x-dff"
+  mp3: 'audio/mpeg',
+  flac: 'audio/flac',
+  m4a: 'audio/mp4',
+  ogg: 'audio/ogg',
+  wma: 'audio/x-ms-wma',
+  wav: 'audio/x-wav',
+  dff: 'audio/x-dff',
 };
 
-
 export function BytesHasPrefix(data: Uint8Array, prefix: number[]): boolean {
-    if (prefix.length > data.length) return false
+  if (prefix.length > data.length) return false;
   return prefix.every((val, idx) => {
     return val === data[idx];
-    })
+  });
 }
 
+export function BytesEqual(a: Uint8Array, b: Uint8Array): boolean {
+  if (a.length !== b.length) return false;
+  return a.every((val, idx) => {
+    return val === b[idx];
+  });
+}
 
-export function SniffAudioExt(data: Uint8Array, fallback_ext: string = "mp3"): string {
-    if (BytesHasPrefix(data, MP3_HEADER)) return "mp3"
-    if (BytesHasPrefix(data, FLAC_HEADER)) return "flac"
-    if (BytesHasPrefix(data, OGG_HEADER)) return "ogg"
-    if (data.length >= 4 + M4A_HEADER.length &&
-        BytesHasPrefix(data.slice(4), M4A_HEADER)) return "m4a"
-    if (BytesHasPrefix(data, WAV_HEADER)) return "wav"
-    if (BytesHasPrefix(data, WMA_HEADER)) return "wma"
-    if (BytesHasPrefix(data, AAC_HEADER)) return "aac"
-    if (BytesHasPrefix(data, DFF_HEADER)) return "dff"
+export function SniffAudioExt(data: Uint8Array, fallback_ext: string = 'mp3'): string {
+  if (BytesHasPrefix(data, MP3_HEADER)) return 'mp3';
+  if (BytesHasPrefix(data, FLAC_HEADER)) return 'flac';
+  if (BytesHasPrefix(data, OGG_HEADER)) return 'ogg';
+  if (data.length >= 4 + M4A_HEADER.length && BytesHasPrefix(data.slice(4), M4A_HEADER)) return 'm4a';
+  if (BytesHasPrefix(data, WAV_HEADER)) return 'wav';
+  if (BytesHasPrefix(data, WMA_HEADER)) return 'wma';
+  if (BytesHasPrefix(data, AAC_HEADER)) return 'aac';
+  if (BytesHasPrefix(data, DFF_HEADER)) return 'dff';
   return fallback_ext;
 }
 
 export function GetArrayBuffer(obj: Blob): Promise<ArrayBuffer> {
-    if (!!obj.arrayBuffer) return obj.arrayBuffer()
+  if (!!obj.arrayBuffer) return obj.arrayBuffer();
   return new Promise((resolve, reject) => {
     const reader = new FileReader();
     reader.onload = (e) => {
-            const rs = e.target?.result
+      const rs = e.target?.result;
       if (!rs) {
-                reject("read file failed")
+        reject('read file failed');
       } else {
-                resolve(rs as ArrayBuffer)
+        resolve(rs as ArrayBuffer);
       }
     };
     reader.readAsArrayBuffer(obj);
@@ -64,22 +69,25 @@ export function GetArrayBuffer(obj: Blob): Promise<ArrayBuffer> {
 
 export function GetCoverFromFile(metadata: IAudioMetadata): string {
   if (metadata.common?.picture && metadata.common.picture.length > 0) {
-        return URL.createObjectURL(new Blob(
-            [metadata.common.picture[0].data],
-            {type: metadata.common.picture[0].format}
-        ));
+    return URL.createObjectURL(
+      new Blob([metadata.common.picture[0].data], { type: metadata.common.picture[0].format }),
+    );
   }
-    return "";
+  return '';
 }
 
 export interface IMusicMetaBasic {
-    title: string
-    artist?: string
+  title: string;
+  artist?: string;
 }
 
-export function GetMetaFromFile(filename: string, exist_title?: string, exist_artist?: string, separator = "-")
-    : IMusicMetaBasic {
-    const meta: IMusicMetaBasic = {title: exist_title ?? "", artist: exist_artist}
+export function GetMetaFromFile(
+  filename: string,
+  exist_title?: string,
+  exist_artist?: string,
+  separator = '-',
+): IMusicMetaBasic {
+  const meta: IMusicMetaBasic = { title: exist_title ?? '', artist: exist_artist };
 
   const items = filename.split(separator);
   if (items.length > 1) {
@@ -88,83 +96,83 @@ export function GetMetaFromFile(filename: string, exist_title?: string, exist_ar
   } else if (items.length === 1) {
     if (!meta.title) meta.title = items[0].trim();
   }
-    return meta
+  return meta;
 }
 
-export async function GetImageFromURL(src: string):
-    Promise<{ mime: string; buffer: ArrayBuffer; url: string } | undefined> {
+export async function GetImageFromURL(
+  src: string,
+): Promise<{ mime: string; buffer: ArrayBuffer; url: string } | undefined> {
   try {
     const resp = await fetch(src);
-        const mime = resp.headers.get("Content-Type");
-        if (mime?.startsWith("image/")) {
+    const mime = resp.headers.get('Content-Type');
+    if (mime?.startsWith('image/')) {
       const buffer = await resp.arrayBuffer();
-            const url = URL.createObjectURL(new Blob([buffer], {type: mime}))
-            return {buffer, url, mime}
+      const url = URL.createObjectURL(new Blob([buffer], { type: mime }));
+      return { buffer, url, mime };
     }
   } catch (e) {
-        console.warn(e)
+    console.warn(e);
   }
 }
 
-
 export interface IMusicMeta {
-    title: string
-    artists?: string[]
-    album?: string
-    picture?: ArrayBuffer
-    picture_desc?: string
+  title: string;
+  artists?: string[];
+  album?: string;
+  picture?: ArrayBuffer;
+  picture_desc?: string;
 }
 
 export function WriteMetaToMp3(audioData: Buffer, info: IMusicMeta, original: IAudioMetadata) {
   const writer = new ID3Writer(audioData);
 
   // reserve original data
-    const frames = original.native['ID3v2.4'] || original.native['ID3v2.3'] || original.native['ID3v2.2'] || []
-    frames.forEach(frame => {
+  const frames = original.native['ID3v2.4'] || original.native['ID3v2.3'] || original.native['ID3v2.2'] || [];
+  frames.forEach((frame) => {
     if (frame.id !== 'TPE1' && frame.id !== 'TIT2' && frame.id !== 'TALB') {
       try {
-                writer.setFrame(frame.id, frame.value)
-            } catch (e) {
+        writer.setFrame(frame.id, frame.value);
+      } catch (e) {}
     }
-        }
-    })
+  });
 
-    const old = original.common
-    writer.setFrame('TPE1', old?.artists || info.artists || [])
+  const old = original.common;
+  writer
+    .setFrame('TPE1', old?.artists || info.artists || [])
     .setFrame('TIT2', old?.title || info.title)
-        .setFrame('TALB', old?.album || info.album || "");
+    .setFrame('TALB', old?.album || info.album || '');
   if (info.picture) {
     writer.setFrame('APIC', {
       type: 3,
       data: info.picture,
-            description: info.picture_desc || "Cover",
-        })
+      description: info.picture_desc || '',
+    });
   }
   return writer.addTag();
 }
 
 export function WriteMetaToFlac(audioData: Buffer, info: IMusicMeta, original: IAudioMetadata) {
-    const writer = new MetaFlac(audioData)
-    const old = original.common
+  const writer = new MetaFlac(audioData);
+  const old = original.common;
   if (!old.title && !old.album && old.artists) {
-        writer.setTag("TITLE=" + info.title)
-        writer.setTag("ALBUM=" + info.album)
+    writer.setTag('TITLE=' + info.title);
+    writer.setTag('ALBUM=' + info.album);
     if (info.artists) {
-            writer.removeTag("ARTIST")
-            info.artists.forEach(artist => writer.setTag("ARTIST=" + artist))
+      writer.removeTag('ARTIST');
+      info.artists.forEach((artist) => writer.setTag('ARTIST=' + artist));
     }
   }
 
   if (info.picture) {
-        writer.importPictureFromBuffer(Buffer.from(info.picture))
+    writer.importPictureFromBuffer(Buffer.from(info.picture));
   }
-    return writer.save()
+  return writer.save();
 }
 
 export function SplitFilename(n: string): { name: string; ext: string } {
-    const pos = n.lastIndexOf(".")
+  const pos = n.lastIndexOf('.');
   return {
     ext: n.substring(pos + 1).toLowerCase(),
-        name: n.substring(0, pos)
-    }
+    name: n.substring(0, pos),
+  };
 }

src/decrypt/xm.ts

@@ -1,55 +1,57 @@
-import {Decrypt as RawDecrypt} from "@/decrypt/raw";
-import {DecryptResult} from "@/decrypt/entity";
-import {AudioMimeType, BytesHasPrefix, GetArrayBuffer, GetCoverFromFile, GetMetaFromFile} from "@/decrypt/utils.ts";
+import { Decrypt as RawDecrypt } from '@/decrypt/raw';
+import { DecryptResult } from '@/decrypt/entity';
+import { AudioMimeType, BytesHasPrefix, GetArrayBuffer, GetCoverFromFile, GetMetaFromFile } from '@/decrypt/utils';
 
-import {parseBlob as metaParseBlob} from "music-metadata-browser";
+import { parseBlob as metaParseBlob } from 'music-metadata-browser';
 
-const MagicHeader = [0x69, 0x66, 0x6D, 0x74]
-const MagicHeader2 = [0xfe, 0xfe, 0xfe, 0xfe]
+const MagicHeader = [0x69, 0x66, 0x6d, 0x74];
+const MagicHeader2 = [0xfe, 0xfe, 0xfe, 0xfe];
 const FileTypeMap: { [key: string]: string } = {
-    " WAV": ".wav",
-    "FLAC": ".flac",
-    " MP3": ".mp3",
-    " A4M": ".m4a",
-}
+  ' WAV': '.wav',
+  FLAC: '.flac',
+  ' MP3': '.mp3',
+  ' A4M': '.m4a',
+};
 
 export async function Decrypt(file: File, raw_filename: string, raw_ext: string): Promise<DecryptResult> {
   const oriData = new Uint8Array(await GetArrayBuffer(file));
   if (!BytesHasPrefix(oriData, MagicHeader) || !BytesHasPrefix(oriData.slice(8, 12), MagicHeader2)) {
-        if (raw_ext === "xm") {
-            throw Error("此xm文件已损坏")
+    if (raw_ext === 'xm') {
+      throw Error('此xm文件已损坏');
     } else {
-            return await RawDecrypt(file, raw_filename, raw_ext, true)
+      return await RawDecrypt(file, raw_filename, raw_ext, true);
     }
   }
 
-    let typeText = (new TextDecoder()).decode(oriData.slice(4, 8))
+  let typeText = new TextDecoder().decode(oriData.slice(4, 8));
   if (!FileTypeMap.hasOwnProperty(typeText)) {
-        throw Error("未知的.xm文件类型")
+    throw Error('未知的.xm文件类型');
   }
 
-    let key = oriData[0xf]
-    let dataOffset = oriData[0xc] | oriData[0xd] << 8 | oriData[0xe] << 16
+  let key = oriData[0xf];
+  let dataOffset = oriData[0xc] | (oriData[0xd] << 8) | (oriData[0xe] << 16);
   let audioData = oriData.slice(0x10);
   let lenAudioData = audioData.length;
-    for (let cur = dataOffset; cur < lenAudioData; ++cur)
-        audioData[cur] = (audioData[cur] - key) ^ 0xff;
+  for (let cur = dataOffset; cur < lenAudioData; ++cur) audioData[cur] = (audioData[cur] - key) ^ 0xff;
 
   const ext = FileTypeMap[typeText];
   const mime = AudioMimeType[ext];
   let musicBlob = new Blob([audioData], { type: mime });
 
   const musicMeta = await metaParseBlob(musicBlob);
-    if (ext === "wav") {
+  if (ext === 'wav') {
     //todo:未知的编码方式
-        console.info(musicMeta.common)
-        musicMeta.common.album = "";
-        musicMeta.common.artist = "";
-        musicMeta.common.title = "";
+    console.info(musicMeta.common);
+    musicMeta.common.album = '';
+    musicMeta.common.artist = '';
+    musicMeta.common.title = '';
   }
-    const {title, artist} = GetMetaFromFile(raw_filename,
-        musicMeta.common.title, musicMeta.common.artist,
-        raw_filename.indexOf("_") === -1 ? "-" : "_")
+  const { title, artist } = GetMetaFromFile(
+    raw_filename,
+    musicMeta.common.title,
+    musicMeta.common.artist,
+    raw_filename.indexOf('_') === -1 ? '-' : '_',
+  );
 
   return {
     title,
@@ -60,7 +62,6 @@ export async function Decrypt(file: File, raw_filename: string, raw_ext: string)
     picture: GetCoverFromFile(musicMeta),
     file: URL.createObjectURL(musicBlob),
     blob: musicBlob,
-        rawExt: "xm"
+    rawExt: 'xm',
+  };
 }
-}
-

src/extension/popup.js

@@ -1,5 +1,2 @@
-const bs = chrome || browser
-bs.tabs.create({
-    url: bs.runtime.getURL('./index.html')
-}, tab => console.log(tab))
-
+const bs = chrome || browser;
+bs.tabs.create({ url: bs.runtime.getURL('./index.html') }, (tab) => console.log(tab));

src/fix-compatibility.js

@@ -1,25 +0,0 @@
-//TODO: Use other method to fix this
-// !! Only Temporary Solution
-// it seems like that @babel/plugin-proposal-object-rest-spread not working
-// to fix up the compatibility for Edge 18 and some older Chromium
-// now manually edit the dependency files
-
-const fs = require('fs');
-const filePath = "./node_modules/file-type/core.js";
-const regReplace = /{\s*([a-zA-Z0-9:,\s]*),\s*\.\.\.([a-zA-Z0-9]*)\s*};/m;
-if (fs.existsSync(filePath)) {
-    console.log("File Found!");
-    let data = fs.readFileSync(filePath).toString();
-    const regResult = regReplace.exec(data);
-    if (regResult != null) {
-        data = data.replace(regResult[0],
-            "Object.assign({ " + regResult[1] + " }, " + regResult[2] + ");"
-        );
-        fs.writeFileSync(filePath, data);
-        console.log("Object rest spread in file-type fixed!");
-    } else {
-        console.log("No fix needed.");
-    }
-} else {
-    console.log("File Not Found!");
-}

src/main.ts

@@ -1,14 +1,18 @@
-import Vue from 'vue'
-import App from '@/App.vue'
-import '@/registerServiceWorker'
+import Vue from 'vue';
+import App from '@/App.vue';
+import '@/registerServiceWorker';
 import {
   Button,
   Checkbox,
   Col,
   Container,
+  Dialog,
+  Form,
+  FormItem,
   Footer,
   Icon,
   Image,
+  Input,
   Link,
   Main,
   Notification,
@@ -19,13 +23,17 @@ import {
   TableColumn,
   Tooltip,
   Upload,
-    MessageBox
+  MessageBox,
 } from 'element-ui';
 import 'element-ui/lib/theme-chalk/base.css';
 
 Vue.use(Link);
 Vue.use(Image);
 Vue.use(Button);
+Vue.use(Dialog);
+Vue.use(Form);
+Vue.use(FormItem);
+Vue.use(Input);
 Vue.use(Table);
 Vue.use(TableColumn);
 Vue.use(Main);
@@ -44,5 +52,5 @@ Vue.prototype.$confirm = MessageBox.confirm;
 
 Vue.config.productionTip = false;
 new Vue({
-    render: h => h(App),
+  render: (h) => h(App),
 }).$mount('#app');

src/registerServiceWorker.js

@@ -1,31 +1,30 @@
 /* eslint-disable no-console */
 
-import {register} from 'register-service-worker'
-
-if (process.env.NODE_ENV === 'production' && window.location.protocol === "https:") {
+import { register } from 'register-service-worker';
 
+if (process.env.NODE_ENV === 'production' && window.location.protocol === 'https:') {
   register(`${process.env.BASE_URL}service-worker.js`, {
     ready() {
-            console.log('App is being served from cache by a service worker.')
+      console.log('App is being served from cache by a service worker.');
     },
     registered() {
-            console.log('Service worker has been registered.')
+      console.log('Service worker has been registered.');
     },
     cached() {
-            console.log('Content has been cached for offline use.')
+      console.log('Content has been cached for offline use.');
     },
     updatefound() {
-            console.log('New content is downloading.')
+      console.log('New content is downloading.');
     },
     updated() {
       console.log('New content is available.');
       window.location.reload();
     },
     offline() {
-            console.log('No internet connection found. App is running in offline mode.')
+      console.log('No internet connection found. App is running in offline mode.');
     },
     error(error) {
-            console.error('Error during service worker registration:', error)
-        }
-    })
+      console.error('Error during service worker registration:', error);
+    },
+  });
 }

src/shims-browser-id3-writer.d.ts

@@ -1,25 +1,23 @@
-declare module "browser-id3-writer" {
+declare module 'browser-id3-writer' {
   export default class ID3Writer {
-        constructor(buffer: Buffer | ArrayBuffer)
+    constructor(buffer: Buffer | ArrayBuffer);
 
-        setFrame(name: string, value: string | object | string[])
+    setFrame(name: string, value: string | object | string[]);
 
-        addTag(): Uint8Array
+    addTag(): Uint8Array;
   }
 }
 
-declare module "metaflac-js" {
+declare module 'metaflac-js' {
   export default class Metaflac {
-        constructor(buffer: Buffer)
+    constructor(buffer: Buffer);
 
-        setTag(field: string)
+    setTag(field: string);
 
-        removeTag(name: string)
+    removeTag(name: string);
 
-        importPictureFromBuffer(picture: Buffer)
+    importPictureFromBuffer(picture: Buffer);
 
-        save(): Buffer
+    save(): Buffer;
   }
 }
-
-

src/shims-fs.d.ts

@@ -1,58 +1,54 @@
 export interface FileSystemGetFileOptions {
-    create?: boolean
+  create?: boolean;
 }
 
 interface FileSystemCreateWritableOptions {
-    keepExistingData?: boolean
+  keepExistingData?: boolean;
 }
 
 interface FileSystemRemoveOptions {
-    recursive?: boolean
+  recursive?: boolean;
 }
 
 interface FileSystemFileHandle {
   getFile(): Promise<File>;
 
-    createWritable(options?: FileSystemCreateWritableOptions): Promise<FileSystemWritableFileStream>
+  createWritable(options?: FileSystemCreateWritableOptions): Promise<FileSystemWritableFileStream>;
 }
 
 enum WriteCommandType {
-    write = "write",
-    seek = "seek",
-    truncate = "truncate",
+  write = 'write',
+  seek = 'seek',
+  truncate = 'truncate',
 }
 
 interface WriteParams {
-    type: WriteCommandType
-    size?: number
-    position?: number
-    data: BufferSource | Blob | string
+  type: WriteCommandType;
+  size?: number;
+  position?: number;
+  data: BufferSource | Blob | string;
 }
 
-type FileSystemWriteChunkType = BufferSource | Blob | string | WriteParams
+type FileSystemWriteChunkType = BufferSource | Blob | string | WriteParams;
 
 interface FileSystemWritableFileStream extends WritableStream {
-    write(data: FileSystemWriteChunkType): Promise<undefined>
+  write(data: FileSystemWriteChunkType): Promise<undefined>;
 
-    seek(position: number): Promise<undefined>
+  seek(position: number): Promise<undefined>;
 
-    truncate(size: number): Promise<undefined>
+  truncate(size: number): Promise<undefined>;
 
-    close(): Promise<undefined> // should be implemented in WritableStream
+  close(): Promise<undefined>; // should be implemented in WritableStream
 }
 
-
 export declare interface FileSystemDirectoryHandle {
-    getFileHandle(name: string, options?: FileSystemGetFileOptions): Promise<FileSystemFileHandle>
-
-    removeEntry(name: string, options?: FileSystemRemoveOptions): Promise<undefined>
+  getFileHandle(name: string, options?: FileSystemGetFileOptions): Promise<FileSystemFileHandle>;
 
+  removeEntry(name: string, options?: FileSystemRemoveOptions): Promise<undefined>;
 }
 
 declare global {
   interface Window {
-
-        showDirectoryPicker?(): Promise<FileSystemDirectoryHandle>
+    showDirectoryPicker?(): Promise<FileSystemDirectoryHandle>;
   }
 }
-

src/shims-tsx.d.ts

@@ -1,17 +1,15 @@
-import Vue, {VNode} from 'vue'
+import Vue, { VNode } from 'vue';
 
 declare global {
   namespace JSX {
     // tslint:disable no-empty-interface
-    interface Element extends VNode {
-    }
+    interface Element extends VNode {}
 
     // tslint:disable no-empty-interface
-    interface ElementClass extends Vue {
-    }
+    interface ElementClass extends Vue {}
 
     interface IntrinsicElements {
-      [elem: string]: any
+      [elem: string]: any;
     }
   }
 }

src/shims-vue.d.ts

@@ -1,4 +1,4 @@
 declare module '*.vue' {
-  import Vue from 'vue'
-  export default Vue
+  import Vue from 'vue';
+  export default Vue;
 }

src/utils/MergeUint8Array.ts

@@ -0,0 +1,15 @@
+export function MergeUint8Array(array: Uint8Array[]): Uint8Array {
+  let length = 0;
+  array.forEach((item) => {
+    length += item.length;
+  });
+
+  let mergedArray = new Uint8Array(length);
+  let offset = 0;
+  array.forEach((item) => {
+    mergedArray.set(item, offset);
+    offset += item.length;
+  });
+
+  return mergedArray;
+}

src/utils/__mocks__/qm_meta.ts

@@ -0,0 +1 @@
+export const extractQQMusicMeta = jest.fn();

src/utils/__mocks__/storage.ts

@@ -0,0 +1,4 @@
+export const storage = {
+  loadJooxUUID: jest.fn(),
+  saveJooxUUID: jest.fn(),
+};

src/utils/api.ts

@@ -1,56 +1,113 @@
-import {fromByteArray as Base64Encode} from "base64-js";
-
-export const IXAREA_API_ENDPOINT = "https://um-api.ixarea.com"
+export const IXAREA_API_ENDPOINT = 'https://um-api.ixarea.com';
 
 export interface UpdateInfo {
-    Found: boolean
-    HttpsFound: boolean
-    Version: string
-    URL: string
-    Detail: string
+  Found: boolean;
+  HttpsFound: boolean;
+  Version: string;
+  URL: string;
+  Detail: string;
 }
 
 export async function checkUpdate(version: string): Promise<UpdateInfo> {
-    const resp = await fetch(IXAREA_API_ENDPOINT + "/music/app-version", {
-        method: "POST",
-        headers: {"Content-Type": "application/json"},
-        body: JSON.stringify({"Version": version})
-    });
-    return await resp.json();
-}
-
-export function reportKeyUsage(keyData: Uint8Array, maskData: number[], filename: string, format: string, title: string, artist?: string, album?: string) {
-    return fetch(IXAREA_API_ENDPOINT + "/qmcmask/usage", {
-        method: "POST",
-        headers: {"Content-Type": "application/json"},
-        body: JSON.stringify({
-            Mask: Base64Encode(new Uint8Array(maskData)), Key: Base64Encode(keyData),
-            Artist: artist, Title: title, Album: album, Filename: filename, Format: format
-        }),
-    })
-}
-
-interface KeyInfo {
-    Matrix44: string
-}
-
-export async function queryKeyInfo(keyData: Uint8Array, filename: string, format: string): Promise<KeyInfo> {
-    const resp = await fetch(IXAREA_API_ENDPOINT + "/qmcmask/query", {
-        method: "POST",
-        headers: {"Content-Type": "application/json"},
-        body: JSON.stringify({Format: format, Key: Base64Encode(keyData), Filename: filename, Type: 44}),
+  const resp = await fetch(IXAREA_API_ENDPOINT + '/music/app-version', {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ Version: version }),
   });
   return await resp.json();
 }
 
 export interface CoverInfo {
-    Id: string
-    Type: number
+  Id: string;
+  Type: number;
 }
 
 export async function queryAlbumCover(title: string, artist?: string, album?: string): Promise<CoverInfo> {
-    const endpoint = IXAREA_API_ENDPOINT + "/music/qq-cover"
-    const params = new URLSearchParams([["Title", title], ["Artist", artist ?? ""], ["Album", album ?? ""]])
-    const resp = await fetch(`${endpoint}?${params.toString()}`)
-    return await resp.json()
+  const endpoint = IXAREA_API_ENDPOINT + '/music/qq-cover';
+  const params = new URLSearchParams([
+    ['Title', title],
+    ['Artist', artist ?? ''],
+    ['Album', album ?? ''],
+  ]);
+  const resp = await fetch(`${endpoint}?${params.toString()}`);
+  return await resp.json();
+}
+
+export interface TrackInfo {
+  id: number;
+  type: number;
+  mid: string;
+  name: string;
+  title: string;
+  subtitle: string;
+  singer: {
+    id: number;
+    mid: string;
+    name: string;
+    title: string;
+    type: number;
+    uin: number;
+  }[];
+  album: {
+    id: number;
+    mid: string;
+    name: string;
+    title: string;
+    subtitle: string;
+    time_public: string;
+    pmid: string;
+  };
+  interval: number;
+  index_cd: number;
+  index_album: number;
+}
+
+export interface SongItemInfo {
+  title: string;
+  content: {
+    value: string;
+  }[];
+}
+
+export interface SongInfoResponse {
+  info: {
+    company: SongItemInfo;
+    genre: SongItemInfo;
+    intro: SongItemInfo;
+    lan: SongItemInfo;
+    pub_time: SongItemInfo;
+  };
+  extras: {
+    name: string;
+    transname: string;
+    subtitle: string;
+    from: string;
+    wikiurl: string;
+  };
+  track_info: TrackInfo;
+}
+
+export interface RawQMBatchResponse<T> {
+  code: number;
+  ts: number;
+  start_ts: number;
+  traceid: string;
+  req_1: {
+    code: number;
+    data: T;
+  };
+}
+
+export async function querySongInfoById(id: string | number): Promise<SongInfoResponse> {
+  const url = `${IXAREA_API_ENDPOINT}/meta/qq-music-raw/${id}`;
+  const result: RawQMBatchResponse<SongInfoResponse> = await fetch(url).then((r) => r.json());
+  if (result.code === 0 && result.req_1.code === 0) {
+    return result.req_1.data;
+  }
+
+  throw new Error('请求信息失败');
+}
+
+export function getQMImageURLFromPMID(pmid: string, type = 1): string {
+  return `${IXAREA_API_ENDPOINT}/music/qq-cover/${type}/${pmid}`;
 }

src/utils/qm_meta.ts

@@ -0,0 +1,147 @@
+import { IAudioMetadata, parseBlob as metaParseBlob } from 'music-metadata-browser';
+import iconv from 'iconv-lite';
+
+import {
+  GetCoverFromFile,
+  GetImageFromURL,
+  GetMetaFromFile,
+  WriteMetaToFlac,
+  WriteMetaToMp3,
+  AudioMimeType,
+} from '@/decrypt/utils';
+import { getQMImageURLFromPMID, queryAlbumCover, querySongInfoById } from '@/utils/api';
+
+interface MetaResult {
+  title: string;
+  artist: string;
+  album: string;
+  imgUrl: string;
+  blob: Blob;
+}
+
+/**
+ *
+ * @param musicBlob 音乐文件（解密后）
+ * @param name 文件名
+ * @param ext 原始后缀名
+ * @param id 曲目 ID（<code>number</code>类型或纯数字组成的字符串）
+ * @returns Promise
+ */
+export async function extractQQMusicMeta(
+  musicBlob: Blob,
+  name: string,
+  ext: string,
+  id?: number | string,
+): Promise<MetaResult> {
+  const musicMeta = await metaParseBlob(musicBlob);
+  for (let metaIdx in musicMeta.native) {
+    if (!musicMeta.native.hasOwnProperty(metaIdx)) continue;
+    if (musicMeta.native[metaIdx].some((item) => item.id === 'TCON' && item.value === '(12)')) {
+      console.warn('try using gbk encoding to decode meta');
+      musicMeta.common.artist = iconv.decode(new Buffer(musicMeta.common.artist ?? ''), 'gbk');
+      musicMeta.common.title = iconv.decode(new Buffer(musicMeta.common.title ?? ''), 'gbk');
+      musicMeta.common.album = iconv.decode(new Buffer(musicMeta.common.album ?? ''), 'gbk');
+    }
+  }
+
+  if (id) {
+    try {
+      return fetchMetadataFromSongId(id, ext, musicMeta, musicBlob);
+    } catch (e) {
+      console.warn('在线获取曲目信息失败，回退到本地 meta 提取', e);
+    }
+  }
+
+  const info = GetMetaFromFile(name, musicMeta.common.title, musicMeta.common.artist);
+  info.artist = info.artist || '';
+
+  let imageURL = GetCoverFromFile(musicMeta);
+  if (!imageURL) {
+    imageURL = await getCoverImage(info.title, info.artist, musicMeta.common.album);
+  }
+
+  return {
+    title: info.title,
+    artist: info.artist || '',
+    album: musicMeta.common.album || '',
+    imgUrl: imageURL,
+    blob: await writeMetaToAudioFile({
+      title: info.title,
+      artists: info.artist.split(' _ '),
+      ext,
+      imageURL,
+      musicMeta,
+      blob: musicBlob,
+    }),
+  };
+}
+
+async function fetchMetadataFromSongId(
+  id: number | string,
+  ext: string,
+  musicMeta: IAudioMetadata,
+  blob: Blob,
+): Promise<MetaResult> {
+  const info = await querySongInfoById(id);
+  const imageURL = getQMImageURLFromPMID(info.track_info.album.pmid);
+  const artists = info.track_info.singer.map((singer) => singer.name);
+
+  return {
+    title: info.track_info.title,
+    artist: artists.join('、'),
+    album: info.track_info.album.name,
+    imgUrl: imageURL,
+
+    blob: await writeMetaToAudioFile({
+      title: info.track_info.title,
+      artists,
+      ext,
+      imageURL,
+      musicMeta,
+      blob,
+    }),
+  };
+}
+
+async function getCoverImage(title: string, artist?: string, album?: string): Promise<string> {
+  try {
+    const data = await queryAlbumCover(title, artist, album);
+    return getQMImageURLFromPMID(data.Id, data.Type);
+  } catch (e) {
+    console.warn(e);
+  }
+  return '';
+}
+
+interface NewAudioMeta {
+  title: string;
+  artists: string[];
+  ext: string;
+
+  musicMeta: IAudioMetadata;
+
+  blob: Blob;
+  imageURL: string;
+}
+
+async function writeMetaToAudioFile(info: NewAudioMeta): Promise<Blob> {
+  try {
+    const imageInfo = await GetImageFromURL(info.imageURL);
+    if (!imageInfo) {
+      console.warn('获取图像失败');
+    }
+    const newMeta = { picture: imageInfo?.buffer, title: info.title, artists: info.artists };
+    const buffer = Buffer.from(await info.blob.arrayBuffer());
+    const mime = AudioMimeType[info.ext] || AudioMimeType.mp3;
+    if (info.ext === 'mp3') {
+      return new Blob([WriteMetaToMp3(buffer, newMeta, info.musicMeta)], { type: mime });
+    } else if (info.ext === 'flac') {
+      return new Blob([WriteMetaToFlac(buffer, newMeta, info.musicMeta)], { type: mime });
+    } else {
+      console.info('writing metadata for ' + info.ext + ' is not being supported for now');
+    }
+  } catch (e) {
+    console.warn('Error while appending cover image to file ' + e);
+  }
+  return info.blob;
+}

src/utils/storage.ts

@@ -0,0 +1,3 @@
+import storageFactory from './storage/StorageFactory';
+
+export const storage = storageFactory();

src/utils/storage/BaseStorage.ts

@@ -0,0 +1,17 @@
+export const KEY_PREFIX = 'um.conf.';
+const KEY_JOOX_UUID = `${KEY_PREFIX}joox.uuid`;
+
+export default abstract class BaseStorage {
+  protected abstract save<T>(name: string, value: T): Promise<void>;
+  protected abstract load<T>(name: string, defaultValue: T): Promise<T>;
+  public abstract getAll(): Promise<Record<string, any>>;
+  public abstract setAll(obj: Record<string, any>): Promise<void>;
+
+  public saveJooxUUID(uuid: string): Promise<void> {
+    return this.save(KEY_JOOX_UUID, uuid);
+  }
+
+  public loadJooxUUID(defaultValue: string = ''): Promise<string> {
+    return this.load(KEY_JOOX_UUID, defaultValue);
+  }
+}

src/utils/storage/BrowserNativeStorage.ts

@@ -0,0 +1,43 @@
+import BaseStorage, { KEY_PREFIX } from './BaseStorage';
+
+export default class BrowserNativeStorage extends BaseStorage {
+  public static get works() {
+    return typeof localStorage !== 'undefined' && localStorage.getItem;
+  }
+
+  protected async load<T>(name: string, defaultValue: T): Promise<T> {
+    const result = localStorage.getItem(name);
+    if (result === null) {
+      return defaultValue;
+    }
+    try {
+      return JSON.parse(result);
+    } catch {
+      return defaultValue;
+    }
+  }
+
+  protected async save<T>(name: string, value: T): Promise<void> {
+    localStorage.setItem(name, JSON.stringify(value));
+  }
+
+  public async getAll(): Promise<Record<string, any>> {
+    const result = {};
+    for (const [key, value] of Object.entries(localStorage)) {
+      if (key.startsWith(KEY_PREFIX)) {
+        try {
+          Object.assign(result, { [key]: JSON.parse(value) });
+        } catch {
+          // ignored
+        }
+      }
+    }
+    return result;
+  }
+
+  public async setAll(obj: Record<string, any>): Promise<void> {
+    for (const [key, value] of Object.entries(obj)) {
+      await this.save(key, value);
+    }
+  }
+}

src/utils/storage/ChromeExtensionStorage.ts

@@ -0,0 +1,47 @@
+import BaseStorage, { KEY_PREFIX } from './BaseStorage';
+
+declare var chrome: any;
+
+export default class ChromeExtensionStorage extends BaseStorage {
+  static get works(): boolean {
+    return typeof chrome !== 'undefined' && Boolean(chrome?.storage?.local?.set);
+  }
+
+  protected async load<T>(name: string, defaultValue: T): Promise<T> {
+    return new Promise((resolve) => {
+      chrome.storage.local.get({ [name]: defaultValue }, (result: any) => {
+        if (Object.prototype.hasOwnProperty.call(result, name)) {
+          resolve(result[name]);
+        } else {
+          resolve(defaultValue);
+        }
+      });
+    });
+  }
+
+  protected async save<T>(name: string, value: T): Promise<void> {
+    return new Promise((resolve) => {
+      chrome.storage.local.set({ [name]: value }, resolve);
+    });
+  }
+
+  public async getAll(): Promise<Record<string, any>> {
+    return new Promise((resolve) => {
+      chrome.storage.local.get(null, (obj: Record<string, any>) => {
+        const result: Record<string, any> = {};
+        for (const [key, value] of Object.entries(obj)) {
+          if (key.startsWith(KEY_PREFIX)) {
+            result[key] = value;
+          }
+        }
+        resolve(result);
+      });
+    });
+  }
+
+  public async setAll(obj: Record<string, any>): Promise<void> {
+    return new Promise((resolve) => {
+      chrome.storage.local.set(obj, resolve);
+    });
+  }
+}

src/utils/storage/InMemoryStorage.ts

@@ -0,0 +1,32 @@
+import BaseStorage from './BaseStorage';
+
+export default class InMemoryStorage extends BaseStorage {
+  private values = new Map<string, any>();
+  protected async load<T>(name: string, defaultValue: T): Promise<T> {
+    if (this.values.has(name)) {
+      return this.values.get(name);
+    }
+
+    return defaultValue;
+  }
+
+  protected async save<T>(name: string, value: T): Promise<void> {
+    this.values.set(name, value);
+  }
+
+  public async getAll(): Promise<Record<string, any>> {
+    const result = {};
+    this.values.forEach((value, key) => {
+      Object.assign(result, {
+        [key]: value,
+      });
+    });
+    return result;
+  }
+
+  public async setAll(obj: Record<string, any>): Promise<void> {
+    for (const [key, value] of Object.entries(obj)) {
+      this.values.set(key, value);
+    }
+  }
+}

src/utils/storage/StorageFactory.ts

@@ -0,0 +1,13 @@
+import BaseStorage from './BaseStorage';
+import BrowserNativeStorage from './BrowserNativeStorage';
+import ChromeExtensionStorage from './ChromeExtensionStorage';
+import InMemoryStorage from './InMemoryStorage';
+
+export default function storageFactory(): BaseStorage {
+  if (ChromeExtensionStorage.works) {
+    return new ChromeExtensionStorage();
+  } else if (BrowserNativeStorage.works) {
+    return new BrowserNativeStorage();
+  }
+  return new InMemoryStorage();
+}

src/utils/tea.test.ts

@@ -0,0 +1,73 @@
+// Copyright 2021 MengYX. All rights reserved.
+//
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in https://go.dev/LICENSE.
+
+import { TeaCipher } from '@/utils/tea';
+
+test('key size', () => {
+  // prettier-ignore
+  const testKey = new Uint8Array([
+    0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77,
+    0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff,
+    0x00,
+  ])
+  expect(() => new TeaCipher(testKey.slice(0, 16))).not.toThrow();
+
+  expect(() => new TeaCipher(testKey)).toThrow();
+
+  expect(() => new TeaCipher(testKey.slice(0, 15))).toThrow();
+});
+
+// prettier-ignore
+const teaTests = [
+  // These were sourced from https://github.com/froydnj/ironclad/blob/master/testing/test-vectors/tea.testvec
+  {
+    rounds: TeaCipher.numRounds,
+    key: new Uint8Array([
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    ]),
+    plainText: new Uint8Array([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]),
+    cipherText: new Uint8Array([0x41, 0xea, 0x3a, 0x0a, 0x94, 0xba, 0xa9, 0x40]),
+  },
+  {
+    rounds: TeaCipher.numRounds,
+    key: new Uint8Array([
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+      0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    ]),
+    plainText: new Uint8Array([0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff]),
+    cipherText: new Uint8Array([0x31, 0x9b, 0xbe, 0xfb, 0x01, 0x6a, 0xbd, 0xb2]),
+  },
+  {
+    rounds: 16,
+    key: new Uint8Array([
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    ]),
+    plainText: new Uint8Array([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]),
+    cipherText: new Uint8Array([0xed, 0x28, 0x5d, 0xa1, 0x45, 0x5b, 0x33, 0xc1]),
+  },
+];
+
+test('rounds', () => {
+  const tt = teaTests[0];
+  expect(() => new TeaCipher(tt.key, tt.rounds - 1)).toThrow();
+});
+
+test('encrypt & decrypt', () => {
+  for (const tt of teaTests) {
+    const c = new TeaCipher(tt.key, tt.rounds);
+
+    const buf = new Uint8Array(8);
+    const bufView = new DataView(buf.buffer);
+
+    c.encrypt(bufView, new DataView(tt.plainText.buffer));
+    expect(buf).toStrictEqual(tt.cipherText);
+
+    c.decrypt(bufView, new DataView(tt.cipherText.buffer));
+    expect(buf).toStrictEqual(tt.plainText);
+  }
+});

src/utils/tea.ts

@@ -0,0 +1,80 @@
+// Copyright 2021 MengYX. All rights reserved.
+//
+// Copyright 2015 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in https://go.dev/LICENSE.
+
+// TeaCipher is a typescript port to golang.org/x/crypto/tea
+
+// Package tea implements the TEA algorithm, as defined in Needham and
+// Wheeler's 1994 technical report, “TEA, a Tiny Encryption Algorithm”. See
+// http://www.cix.co.uk/~klockstone/tea.pdf for details.
+//
+// TEA is a legacy cipher and its short block size makes it vulnerable to
+// birthday bound attacks (see https://sweet32.info). It should only be used
+// where compatibility with legacy systems, not security, is the goal.
+
+export class TeaCipher {
+  // BlockSize is the size of a TEA block, in bytes.
+  static readonly BlockSize = 8;
+
+  // KeySize is the size of a TEA key, in bytes.
+  static readonly KeySize = 16;
+
+  // delta is the TEA key schedule constant.
+  static readonly delta = 0x9e3779b9;
+
+  // numRounds 64 is the standard number of rounds in TEA.
+  static readonly numRounds = 64;
+
+  k0: number;
+  k1: number;
+  k2: number;
+  k3: number;
+  rounds: number;
+
+  constructor(key: Uint8Array, rounds: number = TeaCipher.numRounds) {
+    if (key.length != 16) {
+      throw Error('incorrect key size');
+    }
+    if ((rounds & 1) != 0) {
+      throw Error('odd number of rounds specified');
+    }
+
+    const k = new DataView(key.buffer);
+    this.k0 = k.getUint32(0, false);
+    this.k1 = k.getUint32(4, false);
+    this.k2 = k.getUint32(8, false);
+    this.k3 = k.getUint32(12, false);
+    this.rounds = rounds;
+  }
+
+  encrypt(dst: DataView, src: DataView) {
+    let v0 = src.getUint32(0, false);
+    let v1 = src.getUint32(4, false);
+
+    let sum = 0;
+    for (let i = 0; i < this.rounds / 2; i++) {
+      sum = sum + TeaCipher.delta;
+      v0 += ((v1 << 4) + this.k0) ^ (v1 + sum) ^ ((v1 >>> 5) + this.k1);
+      v1 += ((v0 << 4) + this.k2) ^ (v0 + sum) ^ ((v0 >>> 5) + this.k3);
+    }
+
+    dst.setUint32(0, v0, false);
+    dst.setUint32(4, v1, false);
+  }
+
+  decrypt(dst: DataView, src: DataView) {
+    let v0 = src.getUint32(0, false);
+    let v1 = src.getUint32(4, false);
+
+    let sum = (TeaCipher.delta * this.rounds) / 2;
+    for (let i = 0; i < this.rounds / 2; i++) {
+      v1 -= ((v0 << 4) + this.k2) ^ (v0 + sum) ^ ((v0 >>> 5) + this.k3);
+      v0 -= ((v1 << 4) + this.k0) ^ (v1 + sum) ^ ((v1 >>> 5) + this.k1);
+      sum -= TeaCipher.delta;
+    }
+    dst.setUint32(0, v0, false);
+    dst.setUint32(4, v1, false);
+  }
+}

src/utils/utils.ts

@@ -1,5 +1,5 @@
-import {DecryptResult} from "@/decrypt/entity";
-import {FileSystemDirectoryHandle} from "@/shims-fs";
+import { DecryptResult } from '@/decrypt/entity';
+import { FileSystemDirectoryHandle } from '@/shims-fs';
 
 export enum FilenamePolicy {
   ArtistAndTitle,
@@ -8,12 +8,12 @@ export enum FilenamePolicy {
   SameAsOriginal,
 }
 
-export const FilenamePolicies: { key: FilenamePolicy, text: string }[] = [
-    {key: FilenamePolicy.ArtistAndTitle, text: "歌手-歌曲名"},
-    {key: FilenamePolicy.TitleOnly, text: "歌曲名"},
-    {key: FilenamePolicy.TitleAndArtist, text: "歌曲名-歌手"},
-    {key: FilenamePolicy.SameAsOriginal, text: "同源文件名"},
-]
+export const FilenamePolicies: { key: FilenamePolicy; text: string }[] = [
+  { key: FilenamePolicy.ArtistAndTitle, text: '歌手-歌曲名' },
+  { key: FilenamePolicy.TitleOnly, text: '歌曲名' },
+  { key: FilenamePolicy.TitleAndArtist, text: '歌曲名-歌手' },
+  { key: FilenamePolicy.SameAsOriginal, text: '同源文件名' },
+];
 
 export function GetDownloadFilename(data: DecryptResult, policy: FilenamePolicy): string {
   switch (policy) {
@@ -30,24 +30,22 @@ export function GetDownloadFilename(data: DecryptResult, policy: FilenamePolicy)
 }
 
 export async function DirectlyWriteFile(data: DecryptResult, policy: FilenamePolicy, dir: FileSystemDirectoryHandle) {
-    let filename = GetDownloadFilename(data, policy)
+  let filename = GetDownloadFilename(data, policy);
   // prevent filename exist
   try {
-        await dir.getFileHandle(filename)
-        filename = `${new Date().getTime()} - ${filename}`
-    } catch (e) {
-    }
-    const file = await dir.getFileHandle(filename, {create: true})
-    const w = await file.createWritable()
-    await w.write(data.blob)
-    await w.close()
-
+    await dir.getFileHandle(filename);
+    filename = `${new Date().getTime()} - ${filename}`;
+  } catch (e) {}
+  const file = await dir.getFileHandle(filename, { create: true });
+  const w = await file.createWritable();
+  await w.write(data.blob);
+  await w.close();
 }
 
 export function DownloadBlobMusic(data: DecryptResult, policy: FilenamePolicy) {
   const a = document.createElement('a');
   a.href = data.file;
-    a.download = GetDownloadFilename(data, policy)
+  a.download = GetDownloadFilename(data, policy);
   document.body.append(a);
   a.click();
   a.remove();
@@ -55,7 +53,7 @@ export function DownloadBlobMusic(data: DecryptResult, policy: FilenamePolicy) {
 
 export function RemoveBlobMusic(data: DecryptResult) {
   URL.revokeObjectURL(data.file);
-    if (data.picture?.startsWith("blob:")) {
+  if (data.picture?.startsWith('blob:')) {
     URL.revokeObjectURL(data.picture);
   }
 }
@@ -64,16 +62,19 @@ export class DecryptQueue {
   private readonly pending: (() => Promise<void>)[];
 
   constructor() {
-        this.pending = []
+    this.pending = [];
   }
 
   queue(fn: () => Promise<void>) {
-        this.pending.push(fn)
-        this.consume()
+    this.pending.push(fn);
+    this.consume();
   }
 
   private consume() {
-        const fn = this.pending.shift()
-        if (fn) fn().then(() => this.consume).catch(console.error)
+    const fn = this.pending.shift();
+    if (fn)
+      fn()
+        .then(() => this.consume)
+        .catch(console.error);
   }
 }

src/utils/worker.ts

@@ -1,4 +1,4 @@
-import {expose} from "threads/worker";
-import {CommonDecrypt} from "@/decrypt/common";
+import { expose } from 'threads/worker';
+import { Decrypt } from '@/decrypt';
 
-expose(CommonDecrypt)
+expose(Decrypt);

src/view/Home.vue

@@ -5,18 +5,24 @@
     <div id="app-control">
       <el-row class="mb-3">
         <span>歌曲命名格式：</span>
-                <el-radio v-for="k in FilenamePolicies" :key="k.key"
-                          v-model="filename_policy" :label="k.key">
+        <el-radio v-for="k in FilenamePolicies" :key="k.key" v-model="filename_policy" :label="k.key">
           {{ k.text }}
         </el-radio>
       </el-row>
       <el-row>
+        <config-dialog :show="showConfigDialog" @done="showConfigDialog = false"></config-dialog>
+        <el-tooltip class="item" effect="dark" placement="top">
+          <div slot="content">
+            <span> 部分解密方案需要设定解密参数。 </span>
+          </div>
+          <el-button icon="el-icon-s-tools" plain @click="showConfigDialog = true">解密设定</el-button>
+        </el-tooltip>
         <el-button icon="el-icon-download" plain @click="handleDownloadAll">下载全部</el-button>
         <el-button icon="el-icon-delete" plain type="danger" @click="handleDeleteAll">清除全部</el-button>
 
         <el-tooltip class="item" effect="dark" placement="top-start">
           <div slot="content">
-                        <span v-if="instant_save">工作模式: {{ dir ? "写入本地文件系统" : "调用浏览器下载" }}</span>
+            <span v-if="instant_save">工作模式: {{ dir ? '写入本地文件系统' : '调用浏览器下载' }}</span>
             <span v-else>
               当您使用此工具进行大量文件解锁的时候，建议开启此选项。<br />
               开启后，解锁结果将不会存留于浏览器中，防止内存不足。
@@ -34,62 +40,68 @@
 </template>
 
 <script>
+import FileSelector from '@/component/FileSelector';
+import PreviewTable from '@/component/PreviewTable';
+import ConfigDialog from '@/component/ConfigDialog';
 
-import FileSelector from "@/component/FileSelector"
-import PreviewTable from "@/component/PreviewTable"
-import {DownloadBlobMusic, FilenamePolicy, FilenamePolicies, RemoveBlobMusic, DirectlyWriteFile} from "@/utils/utils"
+import { DownloadBlobMusic, FilenamePolicy, FilenamePolicies, RemoveBlobMusic, DirectlyWriteFile } from '@/utils/utils';
 
 export default {
   name: 'Home',
   components: {
     FileSelector,
-        PreviewTable
+    PreviewTable,
+    ConfigDialog,
   },
   data() {
     return {
+      showConfigDialog: false,
       tableData: [],
-            playing_url: "",
+      playing_url: '',
       playing_auto: false,
       filename_policy: FilenamePolicy.ArtistAndTitle,
       instant_save: false,
       FilenamePolicies,
-            dir: null
-        }
+      dir: null,
+    };
   },
   watch: {
     instant_save(val) {
-            if (val) this.showDirectlySave()
-        }
+      if (val) this.showDirectlySave();
+    },
   },
   methods: {
     async showSuccess(data) {
       if (this.instant_save) {
-                await this.saveFile(data)
+        await this.saveFile(data);
         RemoveBlobMusic(data);
       } else {
         this.tableData.push(data);
         this.$notify.success({
           title: '解锁成功',
           message: '成功解锁 ' + data.title,
-                    duration: 3000
+          duration: 3000,
         });
       }
       if (process.env.NODE_ENV === 'production') {
         let _rp_data = [data.title, data.artist, data.album];
-                window._paq.push(["trackEvent", "Unlock", data.rawExt + "," + data.mime, JSON.stringify(_rp_data)]);
+        window._paq.push(['trackEvent', 'Unlock', data.rawExt + ',' + data.mime, JSON.stringify(_rp_data)]);
       }
     },
     showFail(errInfo, filename) {
-            console.error(errInfo, filename)
+      console.error(errInfo, filename);
       this.$notify.error({
         title: '出现问题',
-                message: errInfo + "，" + filename +
+        message:
+          errInfo +
+          '，' +
+          filename +
           '，参考<a target="_blank" href="https://github.com/ix64/unlock-music/wiki/使用提示">使用提示</a>',
         dangerouslyUseHTMLString: true,
-                duration: 6000
+        duration: 6000,
       });
       if (process.env.NODE_ENV === 'production') {
-                window._paq.push(["trackEvent", "Error", String(errInfo), filename]);
+        window._paq.push(['trackEvent', 'Error', String(errInfo), filename]);
       }
     },
     changePlaying(url) {
@@ -97,16 +109,19 @@ export default {
       this.playing_auto = true;
     },
     handleDeleteAll() {
-            this.tableData.forEach(value => {
+      this.tableData.forEach((value) => {
         RemoveBlobMusic(value);
       });
       this.tableData = [];
     },
+    handleDecryptionConfig() {
+      this.showConfigDialog = true;
+    },
     handleDownloadAll() {
       let index = 0;
       let c = setInterval(() => {
         if (index < this.tableData.length) {
-                    this.saveFile(this.tableData[index])
+          this.saveFile(this.tableData[index]);
           index++;
         } else {
           clearInterval(c);
@@ -116,42 +131,40 @@ export default {
 
     async saveFile(data) {
       if (this.dir) {
-                await DirectlyWriteFile(data, this.filename_policy, this.dir)
+        await DirectlyWriteFile(data, this.filename_policy, this.dir);
         this.$notify({
-                    title: "保存成功",
+          title: '保存成功',
           message: data.title,
-                    position: "top-left",
-                    type: "success",
-                    duration: 3000
-                })
+          position: 'top-left',
+          type: 'success',
+          duration: 3000,
+        });
       } else {
-                DownloadBlobMusic(data, this.filename_policy)
+        DownloadBlobMusic(data, this.filename_policy);
       }
     },
     async showDirectlySave() {
-            if (!window.showDirectoryPicker) return
+      if (!window.showDirectoryPicker) return;
       try {
-                await this.$confirm("您的浏览器支持文件直接保存到磁盘，是否使用？",
-                    "新特性提示", {
-                        confirmButtonText: "使用",
-                        cancelButtonText: "不使用",
-                        type: "warning",
-                        center: true
-                    })
+        await this.$confirm('您的浏览器支持文件直接保存到磁盘，是否使用？', '新特性提示', {
+          confirmButtonText: '使用',
+          cancelButtonText: '不使用',
+          type: 'warning',
+          center: true,
+        });
       } catch (e) {
-                console.log(e)
-                return
+        console.log(e);
+        return;
       }
       try {
-                this.dir = await window.showDirectoryPicker()
-                const test_filename = "__unlock_music_write_test.txt"
-                await this.dir.getFileHandle(test_filename, {create: true})
-                await this.dir.removeEntry(test_filename)
+        this.dir = await window.showDirectoryPicker();
+        const test_filename = '__unlock_music_write_test.txt';
+        await this.dir.getFileHandle(test_filename, { create: true });
+        await this.dir.removeEntry(test_filename);
       } catch (e) {
-                console.error(e)
-            }
+        console.error(e);
       }
     },
-}
+  },
+};
 </script>
-

testdata/mflac0_rc4_key.bin

@@ -0,0 +1 @@
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

testdata/mflac0_rc4_key_raw.bin

@@ -0,0 +1 @@
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

testdata/mflac_map_key.bin

@@ -0,0 +1 @@
+yw7xWOyNQ8585Jwx3hjB49QLPKi38F89awnrQ0fq66NT9TDq1ppHNrFqhaDrU5AFk916D58I53h86304GqOFCCyFzBem68DqiXJ81bILEQwG3P3MOnoNzM820kNW9Lv9IJGNn9Xo497p82BLTm4hAX8JLBs0T2pilKvT429sK9jfg508GSk4d047Jxdz5Fou4aa33OkyFRBU3x430mgNBn04Lc9BzXUI2IGYXv3FGa9qE4Vb54kSjVv8ogbg47j3

testdata/mflac_map_key_raw.bin

@@ -0,0 +1 @@
+eXc3eFdPeU6+3f7GVeF35bMpIEIQj5JWOWt7G+jsR68Hx3BUFBavkTQ8dpPdP0XBIwPe+OfdsnTGVQqPyg3GCtQSrkgA0mwSQdr4DPzKLkEZFX+Cf1V6ChyipOuC6KT37eAxWMdV1UHf9/OCvydr1dc6SWK1ijRUcP6IAHQhiB+mZLay7XXrSPo32WjdBkn9c9sa2SLtI48atj5kfZ4oOq6QGeld2JA3Z+3wwCe6uTHthKaEHY8ufDYodEe3qqrjYpzkdx55pCtxCQa1JiNqFmJigWm4m3CDzhuJ7YqnjbD+mXxLi7BP1+z4L6nccE2h+DGHVqpGjR9+4LBpe4WHB4DrAzVp2qQRRQJxeHd1v88=

testdata/mflac_rc4_key.bin

@@ -0,0 +1 @@
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

testdata/mflac_rc4_key_raw.bin

@@ -0,0 +1 @@
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

testdata/mgg_map_key.bin

@@ -0,0 +1 @@
+zGxNk54pKJ0hDkAo80wHE80ycSWQ7z4m4E846zVy2sqCn14F42Y5S7GqeR11WpOV75sDLbE5dFP992t88l0pHy1yAQ49YK6YX6c543drBYLo55Hc4Y0Fyic6LQPiGqu2bG31r8vaq9wS9v63kg0X5VbnOD6RhO4t0RRhk3ajrA7p0iIy027z0L70LZjtw6E18H0D41nz6ASTx71otdF9z1QNC0JmCl51xvnb39zPExEXyKkV47S6QsK5hFh884QJ

testdata/mgg_map_key_raw.bin

@@ -0,0 +1 @@
+ekd4Tms1NHC53JEDO/AKVyF+I0bj0hHB7CZeoLDGSApaQB9Oo/pJTBGA/RO+nk5RXLXdHsffLiY4e8kt3LNo6qMl7S89vkiSFxx4Uoq4bGDJ7Jc+bYL6lLsa3M4sBvXS4XcPChrMDz+LmrJMGG6ua2fYyIz1d6TCRUBf1JJgCIkBbDAEeMVYc13qApitiz/apGAPmAnveCaDhfD5GxWsF+RfQ2OcnvrnIXe80Feh/0jx763DlsOBI3eIede6t5zYHokWkZmVEF1jMrnlvsgbQK2EzUWMblmLMsTKNILyZazEoKUyulqmyLO/c/KYE+USPOXPcbjlYFmLhSGHK7sQB5aBR153Yp+xh61ooh2NGAA=

tsconfig.json

@@ -14,7 +14,8 @@
     "sourceMap": true,
     "baseUrl": ".",
     "types": [
-      "webpack-env"
+      "webpack-env",
+      "jest"
     ],
     "paths": {
       "@/*": [