Initial commit

Created from https://vercel.com/new
This commit is contained in:
agczsz 2023-06-25 09:36:49 +00:00
commit 6453d339b1
136 changed files with 44481 additions and 0 deletions

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> 1%
last 2 versions

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---
kind: pipeline
type: docker
name: default
steps:
- name: build-wasm
image: emscripten/emsdk:3.0.0
commands:
- ./scripts/build-wasm.sh
- name: build
image: node:16.18-bullseye
commands:
- apt-get update
- apt-get install -y jq zip
- npm ci
- npm run test
- ./scripts/build-and-package.sh legacy
- ./scripts/build-and-package.sh extension
- ./scripts/build-and-package.sh modern
- name: upload artifact
image: node:16.18-bullseye
environment:
DRONE_GITEA_SERVER: https://git.unlock-music.dev
GITEA_API_KEY:
from_secret: GITEA_API_KEY
commands:
- ./scripts/upload-packages.sh

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.DS_Store
node_modules
/dist
/build
/coverage
# local env files
.env.local
.env.*.local
# Log files
npm-debug.log*
yarn-debug.log*
yarn-error.log*
# Editor directories and files
.idea
.vscode
*.suo
*.ntvs*
*.njsproj
*.sln
*.sw?
/src/KgmWasm/build
/src/KgmWasm/*.js
/src/KgmWasm/*.wasm
/src/QmcWasm/build
/src/QmcWasm/*.js
/src/QmcWasm/*.wasm
*.zip
*.tar.gz
/sha256sum.txt

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image: node:16
cache:
paths:
- node_modules/
stages:
- build
build-job:
stage: build
script: |
sed -i 's/deb.debian.org/mirrors.cloud.tencent.com/g' /etc/apt/sources.list
apt-get update
apt-get -y install zip
npm config set registry http://mirrors.cloud.tencent.com/npm/
npm ci
npm run build
tar -czf legacy.tar.gz -C ./dist .
cd dist
zip -rJ9 ../legacy.zip *
cd ..
npm run make-extension
cd dist
zip -rJ9 ../extension.zip *
cd ..
npm run build -- --modern
tar -czf modern.tar.gz -C ./dist .
cd dist
zip -rJ9 ../modern.zip *
cd ..
sha256sum *.tar.gz *.zip > sha256sum.txt
artifacts:
name: "$CI_JOB_NAME"
paths:
- legacy.zip
- legacy.tar.gz
- extension.zip
- modern.zip
- modern.tar.gz
- sha256sum.txt

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---
name: Bug报告
about: 报告Bug以帮助改进程序
title: ''
labels: bug
assignees: ''
---
* 请按照此模板填写,否则可能立即被关闭
- [x] 我确认已经搜索过Issue不存并确认相同的Issue
- [x] 我有证据表明这是程序导致的问题(如不确认,可以在[Discussions](https://github.com/ix64/unlock-music/discussions)内提出)
**Bug描述**
简要地复述你遇到的Bug
**复现方法**
描述复现方法,必要时请提供样本文件
**程序截图或者Console报错信息**
如果可以请提供二者之一
**环境信息:**
- 操作系统和浏览器:
- 程序版本:
- 获取音乐文件所使用的客户端及其版本信息:
**附加信息**
其他能够帮助确认问题的信息

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---
name: 新功能
about: 对于程序新的想法或建议
title: ''
labels: enhancement
assignees: ''
---
- 请按照此模板填写,否则可能立即被关闭
**背景和说明**
简要说明产生此想法的背景和此想法的具体内容
**实现途径**
- 如果没有设计方案,请简要描述实现思路
- 如果你没有任何的实现思路,请通过[Discussions](https://github.com/ix64/unlock-music/discussions)或者Telegram进行讨论
**附加信息**
更多你想要表达的内容

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v16.18.1

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// .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',
};

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FROM --platform=$TARGETPLATFORM nginx:stable-alpine
LABEL org.opencontainers.image.title="Unlock Music"
LABEL org.opencontainers.image.description="Unlock encrypted music file in browser"
LABEL org.opencontainers.image.authors="MengYX"
LABEL org.opencontainers.image.source="https://github.com/ix64/unlock-music"
LABEL org.opencontainers.image.licenses="MIT"
LABEL maintainer="MengYX"
COPY ./dist /usr/share/nginx/html

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MIT License
Copyright (c) 2019-2023 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
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# 关于仓库官方
本仓库原始地址(已 DMCAhttps://github.com/unlock-music/unlock-music
本仓库目前官方地址https://git.unlock-music.dev/um/web
你所看到的这个仓库是依照 MIT 协议授权转载的,代码与[本人](https://github.com/ipid)无关。
# Unlock Music 音乐解锁
[![Build Status](https://ci.unlock-music.dev/api/badges/um/web/status.svg)](https://ci.unlock-music.dev/um/web)
- 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[授权协议]。
- Unlock Music 的 CLI 版本可以在 [unlock-music/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`] ,欢迎加入!
- CI 自动构建已经部署,可以在 [UM-Packages] 下载
[授权协议]: https://git.unlock-music.dev/um/web/src/branch/master/LICENSE
[unlock-music/cli]: https://git.unlock-music.dev/um/cli
[`@unlock_music_chat`]: https://t.me/unlock_music_chat
[UM-Packages]: https://git.unlock-music.dev/um/-/packages/generic/web-build/
## 特性
### 支持的格式
- [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 (.mflac/.mgg/.mflac0/.mgg1/.mggl)
- [x] <ruby>QQ 音乐海外版<rt>JOOX Music</rt></ruby> (.ofl_en)
- [x] 网易云音乐格式 (.ncm)
- [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)
- [x] Android版喜马拉雅文件格式 (.x2m/.x3m)
- [x] 咪咕音乐格式 (.mg3d)
### 其他特性
- [x] 在浏览器中解锁
- [x] 拖放文件
- [x] 批量解锁
- [x] 渐进式 Web 应用 (PWA)
- [x] 多线程
- [x] 写入和编辑元信息与专辑封面
## 使用方法
### 使用预构建版本
- 从 [Release] 或 [CI 构建][UM-Packages] 下载预构建的版本
- :warning: 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**
[release]: https://git.unlock-music.dev/um/web/releases/latest
### 自行构建
#### JS部分
- 环境要求
- nodejs (v16.x)
- npm
1. 获取项目源代码后安装相关依赖:
```sh
npm ci
```
2. 然后进行构建:
```sh
npm run build
```
- 构建后的产物可以在 `dist` 目录找到。
- 如果是用于开发,可以执行 `npm run serve`
3. 如需构建浏览器扩展,构建成功后还需要执行:
```sh
npm run make-extension
```
#### WASM部分
- 环境要求
- Linux
- python3
- 运行此目录下的build-wasm
```sh
./scripts/build-wasm.sh
```

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module.exports = {
presets: [
'@vue/app',
'@babel/preset-typescript'
],
plugins: [
["component", {
"libraryName": "element-ui",
"styleLibraryName": "theme-chalk"
}]
]
};

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extension-manifest.json Normal file
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{
"manifest_version": 2,
"name": "音乐解锁",
"short_name": "音乐解锁",
"icons": {
"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",
"browser_action": {
"default_popup": "./popup.html"
}
}

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module.exports = {
testPathIgnorePatterns: ['/build/', '/dist/', '/node_modules/'],
setupFilesAfterEnv: ['./src/__test__/setup_jest.js'],
moduleNameMapper: {
'@/(.*)': '<rootDir>/src/$1',
},
};

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const fs = require('fs')
const path = require('path')
const src = __dirname + "/src/extension/"
const dst = __dirname + "/dist"
fs.readdirSync(src).forEach(file => {
let srcPath = path.join(src, file)
let dstPath = path.join(dst, file)
fs.copyFileSync(srcPath, dstPath)
console.log(`Copy: ${srcPath} => ${dstPath}`)
})
const manifestRaw = fs.readFileSync(__dirname + "/extension-manifest.json", "utf-8")
const manifest = JSON.parse(manifestRaw)
const pkgRaw = fs.readFileSync(__dirname + "/package.json", "utf-8")
const pkg = JSON.parse(pkgRaw)
verExt = pkg["version"]
if (verExt.startsWith("v")) verExt = verExt.slice(1)
if (verExt.includes("-")) verExt = verExt.split("-")[0]
manifest["version"] = `${verExt}.${pkg["ext_build"]}`
manifest["version_name"] = pkg["version"]
fs.writeFileSync(__dirname + "/dist/manifest.json", JSON.stringify(manifest), "utf-8")
console.log("Write: manifest.json")

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{
"name": "unlock-music",
"version": "1.10.3",
"ext_build": 0,
"updateInfo": "完善音乐标签编辑功能,支持编辑更多标签",
"license": "MIT",
"description": "Unlock encrypted music file in browser.",
"repository": {
"type": "git",
"url": "https://github.com/ix64/unlock-music"
},
"private": true,
"scripts": {
"postinstall": "patch-package",
"serve": "vue-cli-service serve",
"build": "vue-cli-service build",
"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/kugou-crypto": "^1.0.3",
"@unlock-music/joox-crypto": "^0.0.1-R5",
"base64-js": "^1.5.1",
"browser-id3-writer": "^4.4.0",
"core-js": "^3.16.0",
"crypto-js": "^4.1.1",
"element-ui": "^2.15.5",
"iconv-lite": "^0.6.3",
"jimp": "^0.16.1",
"metaflac-js": "^1.0.5",
"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",
"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": "^4.5.4",
"vue-cli-plugin-element": "^1.0.1",
"vue-template-compiler": "^2.6.14"
}
}

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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

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module.exports = {
plugins: {
autoprefixer: {}
}
}

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<?xml version="1.0" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg xmlns:xlink="http://www.w3.org/1999/xlink" t="1566718842150" class="icon" viewBox="0 0 1024 1024" version="1.1"
xmlns="http://www.w3.org/2000/svg" p-id="1244" width="16" height="16">
<defs>
<style type="text/css"></style>
</defs>
<path d="M512 512m-512 0a512 512 0 1 0 1024 0 512 512 0 1 0-1024 0Z" fill="#2674FD" p-id="1245"></path>
<path d="M512 512m-425.57245 0a425.57245 425.57245 0 1 0 851.1449 0 425.57245 425.57245 0 1 0-851.1449 0Z"
fill="#FFFFFF" p-id="1246"></path>
<path d="M512 512m-214.271074 0a214.271074 214.271074 0 1 0 428.542148 0 214.271074 214.271074 0 1 0-428.542148 0Z"
fill="#FFE41F" p-id="1247"></path>
<path d="M635.968268 408.15377l-89.224127-8.722657a15.980441 15.980441 0 0 0-16.859365 11.479283l-1.784482 6.28564a22.372617 22.372617 0 0 0-2.237262 5.193643l-26.088069 91.754363a67.410825 67.410825 0 1 0 12.984108 61.498063c0.332926-1.185216 0.639218-2.370432 0.905558-3.555648h0.093219l33.106147-116.457461 48.527271-1.891019a48.84688 48.84688 0 0 0 37.767108-20.308477l8.735974-12.158452a8.336463 8.336463 0 0 0-5.92608-13.117278z"
fill="#FFFFFF" p-id="1248"></path>
<path d="M214.231123 503.383879c4.527792-160.563477 136.113403-289.339194 297.768877-289.339194s293.241085 128.775717 297.768877 289.339194h214.151221C1019.339038 224.61841 791.910734 0 512 0S4.647645 224.61841 0.079902 503.383879z"
fill="#2674FD" p-id="1249"></path>
</svg>

After

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta content="webkit" name="renderer">
<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 - 在任何设备上解锁已购的加密音乐!" name="description"/>
<!--@formatter:off-->
<style>#loader{position:absolute;left:50%;top:50%;z-index:1010;margin:-75px 0 0 -75px;border:16px solid #f3f3f3;border-radius:50%;border-top:16px solid #1db1ff;width:120px;height:120px;animation:spin 2s linear infinite}@keyframes spin{0%{transform:rotate(0)}100%{transform:rotate(360deg)}}#loader-mask{text-align:center;position:absolute;width:100%;height:100%;bottom:0;left:0;right:0;top:0;z-index:1009;background-color:rgba(242,246,252,.88)}@media (prefers-color-scheme:dark){#loader-mask{color:#fff;background-color:rgba(0,0,0,.85)}#loader-mask a{color:#ddd}#loader-mask a:hover{color:#1db1ff}}#loader-source{font-size:1.5rem}#loader-tips-timeout{font-size:1.2rem}</style>
<!--@formatter:on-->
</head>
<body>
<div id="loader-mask">
<div id="loader"></div>
<noscript>
<h3 id="loader-js">请启用JavaScript</h3>
</noscript>
<h3 id="loader-source"> 请勿直接运行源代码! </h3>
<div id="loader-tips-outdated" hidden>
<h2>您可能在使用不受支持的<span style="color:#f00;">过时</span>浏览器,这可能导致此应用无法正常工作。</h2>
<h3>如果您使用双核浏览器,您可以尝试切换到 <span style="color:#f00;">“极速模式”</span> 解决此问题。</h3>
<h3>或者,您可以尝试更换下方的几个浏览器之一。</h3>
</div>
<h3 id="loader-tips-timeout" hidden>
音乐解锁采用了一些新特性!建议使用
<a href="https://www.microsoft.com/zh-cn/edge" target="_blank">Microsoft Edge Chromium</a>
<a href="https://www.google.cn/chrome/" target="_blank">Google Chrome</a>
<a href="https://www.firefox.com.cn/" target="_blank">Mozilla Firefox</a>
| <a href="https://github.com/ix64/unlock-music/wiki/使用提示" target="_blank">使用提示</a>
</h3>
</div>
<div id="app"></div>
<script src="./loader.js"></script>
</body>
</html>

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(function () {
setTimeout(function () {
var ele = document.getElementById("loader-tips-timeout");
if (ele != null) {
ele.hidden = false;
}
}, 2000);
var ua = navigator && navigator.userAgent;
var detected = (function () {
var m;
if (!ua) return true;
if (/MSIE |Trident\//.exec(ua)) return true; // no IE
m = /Edge\/([\d.]+)/.exec(ua); // Edge >= 17
if (m && Number(m[1]) < 17) return true;
m = /Chrome\/([\d.]+)/.exec(ua); // Chrome >= 58
if (m && Number(m[1]) < 58) return true;
m = /Firefox\/([\d.]+)/.exec(ua); // Firefox >= 45
return m && Number(m[1]) < 45;
})();
if (detected) {
document.getElementById('loader-tips-outdated').hidden = false;
document.getElementById("loader-tips-timeout").hidden = false;
}
})();

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#!/bin/sh
set -ex
cd "$(git rev-parse --show-toplevel)"
VERSION="$(jq -r ".version" <package.json)"
DIST_NAME="um-web.$1.v${VERSION}"
case "$1" in
"modern") npm run build -- --modern ;;
"legacy") npm run build ;;
"extension") npm run make-extension ;;
*)
echo "Unknown command: $1"
exit 1
;;
esac
mv dist "${DIST_NAME}"
zip -rJ9 "${DIST_NAME}.zip" "${DIST_NAME}"
if [ "$1" = "legacy" ]; then
# For upcoming extension build
mv "${DIST_NAME}" dist
else
rm -rf "${DIST_NAME}"
fi

13
scripts/build-wasm.sh Executable file
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#!/usr/bin/env bash
set -ex
cd "$(git rev-parse --show-toplevel)"
pushd ./src/QmcWasm
bash build-wasm
popd
pushd ./src/KgmWasm
bash build-wasm
popd

19
scripts/upload-packages.sh Executable file
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#!/bin/sh
set -ex
cd "$(git rev-parse --show-toplevel)"
if [ -z "$GITEA_API_KEY" ]; then
echo "GITEA_API_KEY is empty, skip upload."
exit 0
fi
URL_BASE="$DRONE_GITEA_SERVER/api/packages/${DRONE_REPO_NAMESPACE}/generic/${DRONE_REPO_NAME}-build"
for ZIP_NAME in *.zip; do
UPLOAD_URL="${URL_BASE}/${DRONE_BUILD_NUMBER}/${ZIP_NAME}"
sha256sum "${ZIP_NAME}"
curl -sLifu "um-release-bot:$GITEA_API_KEY" -T "${ZIP_NAME}" "${UPLOAD_URL}"
echo "Uploaded to: ${UPLOAD_URL}"
done

94
src/App.vue Normal file
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<template>
<el-container id="app">
<el-main>
<Home />
</el-main>
<el-footer id="app-footer">
<el-row>
<a href="https://github.com/ix64/unlock-music" target="_blank">音乐解锁</a>({{ version }})
移除已购音乐的加密保护
<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)
<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>
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
</el-row>
</el-footer>
</el-container>
</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';
export default {
name: 'app',
components: {
FileSelector,
PreviewTable,
Home,
},
data() {
return {
version: config.version,
};
},
created() {
this.$nextTick(() => this.finishLoad());
},
methods: {
async finishLoad() {
const mask = document.getElementById('loader-mask');
if (!!mask) mask.remove();
let updateInfo;
try {
updateInfo = await checkUpdate(this.version);
} catch (e) {
console.warn('check version info failed', e);
}
if (
updateInfo &&
process.env.NODE_ENV === 'production' &&
(updateInfo.HttpsFound || (updateInfo.Found && window.location.protocol !== 'https:'))
) {
this.$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="${updateInfo.URL}">获取更新</a>`,
dangerouslyUseHTMLString: true,
duration: 15000,
position: 'top-left',
});
} else {
this.$notify.info({
title: '离线使用',
message: `<div>
<p>我们使用 PWA 技术无网络也能使用</p>
<div class="update-info">
<div class="update-title">最近更新</div>
<div class="update-content"> ${config.updateInfo} </div>
</div>
<a target="_blank" href="https://github.com/ix64/unlock-music/wiki/使用提示">使用提示</a>
</div>`,
dangerouslyUseHTMLString: true,
duration: 10000,
position: 'top-left',
});
}
},
},
};
</script>
<style lang="scss">
@import 'scss/unlock-music';
</style>

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# CMakeList.txt : CMake project for KgmWasm, include source and define
# project specific logic here.
#
cmake_minimum_required (VERSION 3.8)
project ("KgmWasm")
set(CMAKE_CXX_STANDARD 14)
include_directories(
$<TARGET_PROPERTY:INTERFACE_INCLUDE_DIRECTORIES>
)
# Add source to this project's executable.
set(RUNTIME_METHODS_LIST
getValue
writeArrayToMemory
UTF8ToString
)
list(JOIN RUNTIME_METHODS_LIST "," RUNTIME_METHODS)
set(EMSCRIPTEN_FLAGS
"--bind"
"-s NO_DYNAMIC_EXECUTION=1"
"-s MODULARIZE=1"
"-s EXPORT_NAME=KgmCryptoModule"
"-s EXPORTED_RUNTIME_METHODS=${RUNTIME_METHODS}"
)
set(EMSCRIPTEN_LEGACY_FLAGS
${EMSCRIPTEN_FLAGS}
"-s WASM=0"
"--memory-init-file 0"
)
set(EMSCRIPTEN_WASM_BUNDLE_FLAGS
${EMSCRIPTEN_FLAGS}
"-s SINGLE_FILE=1"
)
list(JOIN EMSCRIPTEN_FLAGS " " EMSCRIPTEN_FLAGS_STR)
list(JOIN EMSCRIPTEN_LEGACY_FLAGS " " EMSCRIPTEN_LEGACY_FLAGS_STR)
list(JOIN EMSCRIPTEN_WASM_BUNDLE_FLAGS " " EMSCRIPTEN_WASM_BUNDLE_FLAGS_STR)
# Define projects config
set(WASM_SOURCES
"KgmWasm.cpp"
)
add_executable(KgmWasm ${WASM_SOURCES})
set_target_properties(
KgmWasm
PROPERTIES LINK_FLAGS ${EMSCRIPTEN_FLAGS_STR}
)
add_executable(KgmWasmBundle ${WASM_SOURCES})
set_target_properties(
KgmWasmBundle
PROPERTIES LINK_FLAGS ${EMSCRIPTEN_WASM_BUNDLE_FLAGS_STR}
)
add_executable(KgmLegacy ${WASM_SOURCES})
set_target_properties(
KgmLegacy
PROPERTIES LINK_FLAGS ${EMSCRIPTEN_LEGACY_FLAGS_STR}
)

20
src/KgmWasm/KgmWasm.cpp Normal file
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// KgmWasm.cpp : Defines the entry point for the application.
//
#include "KgmWasm.h"
#include "kgm.hpp"
#include <stddef.h>
#include <string.h>
size_t preDec(uintptr_t blob, size_t blobSize, std::string ext)
{
return PreDec((uint8_t*)blob, blobSize, ext == "vpr");
}
void decBlob(uintptr_t blob, size_t blobSize, size_t offset)
{
Decrypt((uint8_t*)blob, blobSize, offset);
return;
}

18
src/KgmWasm/KgmWasm.h Normal file
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// KgmWasm.h : Include file for standard system include files,
// or project specific include files.
#pragma once
#include <emscripten/bind.h>
#include <string>
namespace em = emscripten;
size_t preDec(uintptr_t blob, size_t blobSize, std::string ext);
void decBlob(uintptr_t blob, size_t blobSize, size_t offset);
EMSCRIPTEN_BINDINGS(QmcCrypto)
{
em::function("preDec", &preDec, em::allow_raw_pointers());
em::function("decBlob", &decBlob, em::allow_raw_pointers());
}

9
src/KgmWasm/README.md Normal file
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# KgmWasm
## 构建
在 Linux 环境下执行 `bash build-wasm` 即可构建。
## Build
Linux environment required. Build wasm binary by execute `bash build-wasm`.

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src/KgmWasm/build-wasm Executable file
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#!/usr/bin/env bash
set -e
pushd "$(realpath "$(dirname "$0")")"
CURR_DIR="${PWD}"
BUILD_TYPE="$1"
if [ -z "$BUILD_TYPE" ]; then
BUILD_TYPE=Release
fi
# CI: already had emsdk installed.
if ! command -v emcc; then
if [ ! -d ../../build/emsdk ]; then
git clone https://github.com/emscripten-core/emsdk.git ../../build/emsdk
fi
pushd ../../build/emsdk
./emsdk install 3.0.0
./emsdk activate 3.0.0
source ./emsdk_env.sh
popd # ../../build/emsdk
fi
mkdir -p build/wasm
pushd build/wasm
emcmake cmake -DCMAKE_BUILD_TYPE="$BUILD_TYPE" ../..
make -j
TARGET_FILES="
KgmLegacy.js
KgmWasm.js
KgmWasm.wasm
KgmWasmBundle.js
"
cp $TARGET_FILES "${CURR_DIR}/"
popd # build/wasm
popd

112
src/KgmWasm/kgm.hpp Normal file
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#include <vector>
std::vector<uint8_t> VprHeader = {
0x05, 0x28, 0xBC, 0x96, 0xE9, 0xE4, 0x5A, 0x43,
0x91, 0xAA, 0xBD, 0xD0, 0x7A, 0xF5, 0x36, 0x31 };
std::vector<uint8_t> KgmHeader = {
0x7C, 0xD5, 0x32, 0xEB, 0x86, 0x02, 0x7F, 0x4B,
0xA8, 0xAF, 0xA6, 0x8E, 0x0F, 0xFF, 0x99, 0x14 };
std::vector<uint8_t> VprMaskDiff = {
0x25, 0xDF, 0xE8, 0xA6, 0x75, 0x1E, 0x75, 0x0E,
0x2F, 0x80, 0xF3, 0x2D, 0xB8, 0xB6, 0xE3, 0x11, 0x00 };
std::vector<uint8_t> MaskV2;
std::vector<uint8_t> table1 = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x21, 0x01, 0x61, 0x01, 0x21, 0x01, 0xe1, 0x01, 0x21, 0x01, 0x61, 0x01, 0x21, 0x01,
0xd2, 0x23, 0x02, 0x02, 0x42, 0x42, 0x02, 0x02, 0xc2, 0xc2, 0x02, 0x02, 0x42, 0x42, 0x02, 0x02,
0xd3, 0xd3, 0x02, 0x03, 0x63, 0x43, 0x63, 0x03, 0xe3, 0xc3, 0xe3, 0x03, 0x63, 0x43, 0x63, 0x03,
0x94, 0xb4, 0x94, 0x65, 0x04, 0x04, 0x04, 0x04, 0x84, 0x84, 0x84, 0x84, 0x04, 0x04, 0x04, 0x04,
0x95, 0x95, 0x95, 0x95, 0x04, 0x05, 0x25, 0x05, 0xe5, 0x85, 0xa5, 0x85, 0xe5, 0x05, 0x25, 0x05,
0xd6, 0xb6, 0x96, 0xb6, 0xd6, 0x27, 0x06, 0x06, 0xc6, 0xc6, 0x86, 0x86, 0xc6, 0xc6, 0x06, 0x06,
0xd7, 0xd7, 0x97, 0x97, 0xd7, 0xd7, 0x06, 0x07, 0xe7, 0xc7, 0xe7, 0x87, 0xe7, 0xc7, 0xe7, 0x07,
0x18, 0x38, 0x18, 0x78, 0x18, 0x38, 0x18, 0xe9, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x19, 0x08, 0x09, 0x29, 0x09, 0x69, 0x09, 0x29, 0x09,
0xda, 0x3a, 0x1a, 0x3a, 0x5a, 0x3a, 0x1a, 0x3a, 0xda, 0x2b, 0x0a, 0x0a, 0x4a, 0x4a, 0x0a, 0x0a,
0xdb, 0xdb, 0x1b, 0x1b, 0x5b, 0x5b, 0x1b, 0x1b, 0xdb, 0xdb, 0x0a, 0x0b, 0x6b, 0x4b, 0x6b, 0x0b,
0x9c, 0xbc, 0x9c, 0x7c, 0x1c, 0x3c, 0x1c, 0x7c, 0x9c, 0xbc, 0x9c, 0x6d, 0x0c, 0x0c, 0x0c, 0x0c,
0x9d, 0x9d, 0x9d, 0x9d, 0x1d, 0x1d, 0x1d, 0x1d, 0x9d, 0x9d, 0x9d, 0x9d, 0x0c, 0x0d, 0x2d, 0x0d,
0xde, 0xbe, 0x9e, 0xbe, 0xde, 0x3e, 0x1e, 0x3e, 0xde, 0xbe, 0x9e, 0xbe, 0xde, 0x2f, 0x0e, 0x0e,
0xdf, 0xdf, 0x9f, 0x9f, 0xdf, 0xdf, 0x1f, 0x1f, 0xdf, 0xdf, 0x9f, 0x9f, 0xdf, 0xdf, 0x0e, 0x0f,
0x00, 0x20, 0x00, 0x60, 0x00, 0x20, 0x00, 0xe0, 0x00, 0x20, 0x00, 0x60, 0x00, 0x20, 0x00, 0xf1
};
std::vector<uint8_t> table2 = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x23, 0x01, 0x67, 0x01, 0x23, 0x01, 0xef, 0x01, 0x23, 0x01, 0x67, 0x01, 0x23, 0x01,
0xdf, 0x21, 0x02, 0x02, 0x46, 0x46, 0x02, 0x02, 0xce, 0xce, 0x02, 0x02, 0x46, 0x46, 0x02, 0x02,
0xde, 0xde, 0x02, 0x03, 0x65, 0x47, 0x65, 0x03, 0xed, 0xcf, 0xed, 0x03, 0x65, 0x47, 0x65, 0x03,
0x9d, 0xbf, 0x9d, 0x63, 0x04, 0x04, 0x04, 0x04, 0x8c, 0x8c, 0x8c, 0x8c, 0x04, 0x04, 0x04, 0x04,
0x9c, 0x9c, 0x9c, 0x9c, 0x04, 0x05, 0x27, 0x05, 0xeb, 0x8d, 0xaf, 0x8d, 0xeb, 0x05, 0x27, 0x05,
0xdb, 0xbd, 0x9f, 0xbd, 0xdb, 0x25, 0x06, 0x06, 0xca, 0xca, 0x8e, 0x8e, 0xca, 0xca, 0x06, 0x06,
0xda, 0xda, 0x9e, 0x9e, 0xda, 0xda, 0x06, 0x07, 0xe9, 0xcb, 0xe9, 0x8f, 0xe9, 0xcb, 0xe9, 0x07,
0x19, 0x3b, 0x19, 0x7f, 0x19, 0x3b, 0x19, 0xe7, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x08, 0x09, 0x2b, 0x09, 0x6f, 0x09, 0x2b, 0x09,
0xd7, 0x39, 0x1b, 0x39, 0x5f, 0x39, 0x1b, 0x39, 0xd7, 0x29, 0x0a, 0x0a, 0x4e, 0x4e, 0x0a, 0x0a,
0xd6, 0xd6, 0x1a, 0x1a, 0x5e, 0x5e, 0x1a, 0x1a, 0xd6, 0xd6, 0x0a, 0x0b, 0x6d, 0x4f, 0x6d, 0x0b,
0x95, 0xb7, 0x95, 0x7b, 0x1d, 0x3f, 0x1d, 0x7b, 0x95, 0xb7, 0x95, 0x6b, 0x0c, 0x0c, 0x0c, 0x0c,
0x94, 0x94, 0x94, 0x94, 0x1c, 0x1c, 0x1c, 0x1c, 0x94, 0x94, 0x94, 0x94, 0x0c, 0x0d, 0x2f, 0x0d,
0xd3, 0xb5, 0x97, 0xb5, 0xd3, 0x3d, 0x1f, 0x3d, 0xd3, 0xb5, 0x97, 0xb5, 0xd3, 0x2d, 0x0e, 0x0e,
0xd2, 0xd2, 0x96, 0x96, 0xd2, 0xd2, 0x1e, 0x1e, 0xd2, 0xd2, 0x96, 0x96, 0xd2, 0xd2, 0x0e, 0x0f,
0x00, 0x22, 0x00, 0x66, 0x00, 0x22, 0x00, 0xee, 0x00, 0x22, 0x00, 0x66, 0x00, 0x22, 0x00, 0xfe
};
std::vector<uint8_t> 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,
};
uint8_t getMask(size_t pos) {
size_t offset = pos >> 4;
uint8_t value = 0;
while (offset >= 0x11) {
value ^= table1[offset % 272];
offset >>= 4;
value ^= table2[offset % 272];
offset >>= 4;
}
return MaskV2PreDef[pos % 272] ^ value;
}
std::vector<uint8_t> key(17);
bool isVpr = false;
size_t PreDec(uint8_t* fileData, size_t size, bool iV) {
uint32_t headerLen = *(uint32_t*)(fileData + 0x10);
memcpy(key.data(), (fileData + 0x1C), 0x10);
key[16] = 0;
isVpr = iV;
return headerLen;
}
void Decrypt(uint8_t* fileData, size_t size, size_t offset) {
for (size_t i = 0; i < size; ++i) {
uint8_t med8 = key[(i + offset) % 17] ^ fileData[i];
med8 ^= (med8 & 0xf) << 4;
uint8_t msk8 = getMask(i + offset);
msk8 ^= (msk8 & 0xf) << 4;
fileData[i] = med8 ^ msk8;
if (isVpr) {
fileData[i] ^= VprMaskDiff[(i + offset) % 17];
}
}
}

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# CMakeList.txt : CMake project for QmcWasm, include source and define
# project specific logic here.
#
cmake_minimum_required (VERSION 3.8)
project ("QmcWasm")
set(CMAKE_CXX_STANDARD 14)
include_directories(
$<TARGET_PROPERTY:INTERFACE_INCLUDE_DIRECTORIES>
)
# Add source to this project's executable.
set(RUNTIME_METHODS_LIST
getValue
writeArrayToMemory
UTF8ToString
)
list(JOIN RUNTIME_METHODS_LIST "," RUNTIME_METHODS)
set(EMSCRIPTEN_FLAGS
"--bind"
"-s NO_DYNAMIC_EXECUTION=1"
"-s MODULARIZE=1"
"-s EXPORT_NAME=QmcCryptoModule"
"-s EXPORTED_RUNTIME_METHODS=${RUNTIME_METHODS}"
)
set(EMSCRIPTEN_LEGACY_FLAGS
${EMSCRIPTEN_FLAGS}
"-s WASM=0"
"--memory-init-file 0"
)
set(EMSCRIPTEN_WASM_BUNDLE_FLAGS
${EMSCRIPTEN_FLAGS}
"-s SINGLE_FILE=1"
)
list(JOIN EMSCRIPTEN_FLAGS " " EMSCRIPTEN_FLAGS_STR)
list(JOIN EMSCRIPTEN_LEGACY_FLAGS " " EMSCRIPTEN_LEGACY_FLAGS_STR)
list(JOIN EMSCRIPTEN_WASM_BUNDLE_FLAGS " " EMSCRIPTEN_WASM_BUNDLE_FLAGS_STR)
# Define projects config
set(WASM_SOURCES
"QmcWasm.cpp"
)
add_executable(QmcWasm ${WASM_SOURCES})
set_target_properties(
QmcWasm
PROPERTIES LINK_FLAGS ${EMSCRIPTEN_FLAGS_STR}
)
add_executable(QmcWasmBundle ${WASM_SOURCES})
set_target_properties(
QmcWasmBundle
PROPERTIES LINK_FLAGS ${EMSCRIPTEN_WASM_BUNDLE_FLAGS_STR}
)
add_executable(QmcLegacy ${WASM_SOURCES})
set_target_properties(
QmcLegacy
PROPERTIES LINK_FLAGS ${EMSCRIPTEN_LEGACY_FLAGS_STR}
)

57
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// QmcWasm.cpp : Defines the entry point for the application.
//
#include "QmcWasm.h"
#include "qmc.hpp"
#include <stddef.h>
#include <string.h>
std::string err = "";
std::string sid = "";
QmcDecode e;
int preDec(uintptr_t blob, size_t blobSize, std::string ext)
{
if (!e.SetBlob((uint8_t*)blob, blobSize))
{
err = "cannot allocate memory";
return -1;
}
int tailSize = e.PreDecode(ext);
if (e.error != "")
{
err = e.error;
return -1;
}
sid = e.songId;
return tailSize;
}
size_t decBlob(uintptr_t blob, size_t blobSize, size_t offset)
{
if (!e.SetBlob((uint8_t*)blob, blobSize))
{
err = "cannot allocate memory";
return 0;
}
std::vector<uint8_t> decData = e.Decode(offset);
if (e.error != "")
{
err = e.error;
return 0;
}
memcpy((uint8_t*)blob, decData.data(), decData.size());
return decData.size();
}
std::string getErr()
{
return err;
}
std::string getSongId()
{
return sid;
}

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// QmcWasm.h : Include file for standard system include files,
// or project specific include files.
#pragma once
#include <emscripten/bind.h>
#include <string>
namespace em = emscripten;
int preDec(uintptr_t blob, size_t blobSize, std::string ext);
size_t decBlob(uintptr_t blob, size_t blobSize, size_t offset);
std::string getErr();
std::string getSongId();
EMSCRIPTEN_BINDINGS(QmcCrypto)
{
em::function("getErr", &getErr);
em::function("getSongId", &getSongId);
em::function("preDec", &preDec, em::allow_raw_pointers());
em::function("decBlob", &decBlob, em::allow_raw_pointers());
}

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# QmcWasm
## 构建
在 Linux 环境下执行 `bash build-wasm` 即可构建。
## Build
Linux environment required. Build wasm binary by execute `bash build-wasm`.

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#ifndef QQMUSIC_CPP_TENCENTTEA_HPP
#define QQMUSIC_CPP_TENCENTTEA_HPP
#include <cstdlib>
#include <cstdio>
#include <cstdint>
#include <vector>
#include <time.h>
#include <arpa/inet.h>
const uint32_t DELTA = 0x9e3779b9;
#define ROUNDS 32
#define SALT_LEN 2
#define ZERO_LEN 7
void TeaDecryptECB(uint8_t* src, uint8_t* dst, std::vector<uint8_t> key, size_t rounds = ROUNDS) {
if (key.size() != 16 || (rounds & 1) != 0)
{
return;
}
uint32_t y, z, sum;
uint32_t k[4];
int i;
//now encrypted buf is TCP/IP-endian;
//TCP/IP network byte order (which is big-endian).
y = ntohl(*((uint32_t*)src));
z = ntohl(*((uint32_t*)(src + 4)));
//std::cout << ntohl(0x0a3aea41);
for (i = 0; i < 4; i++) {
//key is TCP/IP-endian;
k[i] = ntohl(*((uint32_t*)(key.data() + i * 4)));
}
sum = (DELTA * rounds);
for (i = 0; i < rounds; i++) {
z -= ((y << 4) + k[2]) ^ (y + sum) ^ ((y >> 5) + k[3]);
y -= ((z << 4) + k[0]) ^ (z + sum) ^ ((z >> 5) + k[1]);
sum -= DELTA;
}
*((uint32_t*)dst) = ntohl(y);
*((uint32_t*)(dst + 4)) = ntohl(z);
//now plain-text is TCP/IP-endian;
}
void TeaEncryptECB(uint8_t* src, uint8_t* dst, std::vector<uint8_t> key, size_t rounds = ROUNDS) {
if (key.size() != 16 || (rounds & 1) != 0)
{
return;
}
uint32_t y, z, sum;
uint32_t k[4];
int i;
//now encrypted buf is TCP/IP-endian;
//TCP/IP network byte order (which is big-endian).
y = ntohl(*((uint32_t*)src));
z = ntohl(*((uint32_t*)(src + 4)));
//std::cout << ntohl(0x0a3aea41);
for (i = 0; i < 4; i++) {
//key is TCP/IP-endian;
k[i] = ntohl(*((uint32_t*)(key.data() + i * 4)));
}
sum = 0;
for (i = 0; i < rounds; i++) {
sum += DELTA;
y += ((z << 4) + k[0]) ^ (z + sum) ^ ((z >> 5) + k[1]);
z += ((y << 4) + k[2]) ^ (y + sum) ^ ((y >> 5) + k[3]);
}
*((uint32_t*)dst) = ntohl(y);
*((uint32_t*)(dst + 4)) = ntohl(z);
//now plain-text is TCP/IP-endian;
}
/*pKey为16byte*/
/*
:nInBufLen为需加密的明文部分(Body);
:(8byte的倍数);
*/
/*TEA加密算法,CBC模式*/
/*密文格式:PadLen(1byte)+Padding(var,0-7byte)+Salt(2byte)+Body(var byte)+Zero(7byte)*/
int encryptTencentTeaLen(int nInBufLen)
{
int nPadSaltBodyZeroLen/*PadLen(1byte)+Salt+Body+Zero的长度*/;
int nPadlen;
/*根据Body长度计算PadLen,最小必需长度必需为8byte的整数倍*/
nPadSaltBodyZeroLen = nInBufLen/*Body长度*/ + 1 + SALT_LEN + ZERO_LEN/*PadLen(1byte)+Salt(2byte)+Zero(7byte)*/;
if ((nPadlen = nPadSaltBodyZeroLen % 8)) /*len=nSaltBodyZeroLen%8*/
{
/*模8余0需补0,余1补7,余2补6,...,余7补1*/
nPadlen = 8 - nPadlen;
}
return nPadlen;
}
/*pKey为16byte*/
/*
:pInBuf为需加密的明文部分(Body),nInBufLen为pInBuf长度;
:pOutBuf为密文格式,pOutBufLen为pOutBuf的长度是8byte的倍数;
*/
/*TEA加密算法,CBC模式*/
/*密文格式:PadLen(1byte)+Padding(var,0-7byte)+Salt(2byte)+Body(var byte)+Zero(7byte)*/
bool encryptTencentTea(std::vector<uint8_t> inBuf, std::vector<uint8_t> key, std::vector<uint8_t> &outBuf)
{
srand(time(0));
int nPadlen = encryptTencentTeaLen(inBuf.size());
size_t ivCrypt;
std::vector<uint8_t> srcBuf;
srcBuf.resize(8);
std::vector<uint8_t> ivPlain;
ivPlain.resize(8);
int tmpIdx, i, j;
/*加密第一块数据(8byte),取前面10byte*/
srcBuf[0] = (((char)rand()) & 0x0f8)/*最低三位存PadLen,清零*/ | (char)nPadlen;
tmpIdx = 1; /*tmpIdx指向srcBuf下一个位置*/
while (nPadlen--) srcBuf[tmpIdx++] = (char)rand(); /*Padding*/
/*come here, tmpIdx must <= 8*/
for (i = 0; i < 8; i++) ivPlain[i] = 0;
ivCrypt = 0;//ivPlain /*make zero iv*/
auto outBufPos = 0; /*init outBufPos*/
#define cryptBlock {\
/*tmpIdx==8*/\
outBuf.resize(outBuf.size() + 8);\
for (j = 0; j < 8; j++) /*加密前异或前8个byte的密文(iv_crypt指向的)*/\
srcBuf[j] ^= outBuf[j + ivCrypt];\
/*pOutBuffer、pInBuffer均为8byte, pKey为16byte*/\
/*加密*/\
TeaEncryptECB(srcBuf.data(), outBuf.data()+outBufPos, key, 16);\
for (j = 0; j < 8; j++) /*加密后异或前8个byte的明文(iv_plain指向的)*/\
outBuf[j + outBufPos] ^= ivPlain[j];\
/*保存当前的iv_plain*/\
for (j = 0; j < 8; j++) ivPlain[j] = srcBuf[j];\
/*更新iv_crypt*/\
tmpIdx = 0;\
ivCrypt = outBufPos;\
outBufPos += 8;\
}
for (i = 1; i <= SALT_LEN;) /*Salt(2byte)*/
{
if (tmpIdx < 8)
{
srcBuf[tmpIdx++] = (char)rand();
i++; /*i inc in here*/
}
if (tmpIdx == 8)
{
cryptBlock
}
}
/*tmpIdx指向srcBuf下一个位置*/
auto inBufPos = 0;
while (inBufPos < inBuf.size())
{
if (tmpIdx < 8)
{
srcBuf[tmpIdx++] = inBuf[inBufPos];
inBufPos++;
}
if (tmpIdx == 8)
{
cryptBlock
}
}
/*tmpIdx指向srcBuf下一个位置*/
for (i = 1; i <= ZERO_LEN;)
{
if (tmpIdx < 8)
{
srcBuf[tmpIdx++] = 0;
i++; //i inc in here
}
if (tmpIdx == 8)
{
cryptBlock
}
}
return true;
#undef cryptBlock
}
bool decryptTencentTea(std::vector<uint8_t> inBuf, std::vector<uint8_t> key, std::vector<uint8_t> &out) {
if (inBuf.size() % 8 != 0) {
return false;
//inBuf size not a multiple of the block size
}
if (inBuf.size() < 16) {
return false;
//inBuf size too small
}
std::vector<uint8_t> tmpBuf;
tmpBuf.resize(8);
TeaDecryptECB(inBuf.data(), tmpBuf.data(), key, 16);
auto 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)*/
auto outLen = inBuf.size() - 1 /*PadLen*/ - nPadLen - SALT_LEN - ZERO_LEN;
std::vector<uint8_t> outBuf;
outBuf.resize(outLen);
std::vector<uint8_t> ivPrev;
ivPrev.resize(8);
std::vector<uint8_t> ivCur;
ivCur.resize(8);
for (size_t i = 0; i < 8; i++)
{
ivCur[i] = inBuf[i]; // init iv
}
auto inBufPos = 8;
// 跳过 Padding Len 和 Padding
auto tmpIdx = 1 + nPadLen;
// CBC IV 处理
#define cryptBlock {\
ivPrev = ivCur;\
for (size_t k = inBufPos; k < inBufPos + 8; k++)\
{\
ivCur[k - inBufPos] = inBuf[k];\
}\
for (size_t j = 0; j < 8; j++) {\
tmpBuf[j] ^= ivCur[j];\
}\
TeaDecryptECB(tmpBuf.data(), tmpBuf.data(), key, 16);\
inBufPos += 8;\
tmpIdx = 0;\
}
// 跳过 Salt
for (size_t i = 1; i <= SALT_LEN; ) {
if (tmpIdx < 8) {
tmpIdx++;
i++;
}
else {
cryptBlock
}
}
// 还原明文
auto outBufPos = 0;
while (outBufPos < outLen) {
if (tmpIdx < 8) {
outBuf[outBufPos] = tmpBuf[tmpIdx] ^ ivPrev[tmpIdx];
outBufPos++;
tmpIdx++;
}
else {
cryptBlock
}
}
// 校验Zero
for (size_t i = 1; i <= ZERO_LEN; i++) {
if (tmpBuf[i] != ivPrev[i]) {
return false;
//zero check failed
}
}
out = outBuf;
return true;
#undef cryptBlock
}
#endif //QQMUSIC_CPP_TENCENTTEA_HPP

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//
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/boostorg/beast
//
/*
Portions from http://www.adp-gmbh.ch/cpp/common/base64.html
Copyright notice:
base64.cpp and base64.h
Copyright (C) 2004-2008 Rene Nyffenegger
This source code is provided 'as-is', without any express or implied
warranty. In no event will the author be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this source code must not be misrepresented; you must not
claim that you wrote the original source code. If you use this source code
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original source code.
3. This notice may not be removed or altered from any source distribution.
Rene Nyffenegger rene.nyffenegger@adp-gmbh.ch
*/
#ifndef BASE64_HPP
#define BASE64_HPP
#include <cctype>
#include <string>
#include <utility>
namespace base64 {
/// Returns max chars needed to encode a base64 string
std::size_t constexpr
encoded_size(std::size_t n)
{
return 4 * ((n + 2) / 3);
}
/// Returns max bytes needed to decode a base64 string
inline
std::size_t constexpr
decoded_size(std::size_t n)
{
return n / 4 * 3; // requires n&3==0, smaller
}
char const*
get_alphabet()
{
static char constexpr tab[] = {
"ABCDEFGHIJKLMNOP"
"QRSTUVWXYZabcdef"
"ghijklmnopqrstuv"
"wxyz0123456789+/"
};
return &tab[0];
}
signed char const*
get_inverse()
{
static signed char constexpr tab[] = {
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 0-15
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 16-31
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 62, -1, -1, -1, 63, // 32-47
52, 53, 54, 55, 56, 57, 58, 59, 60, 61, -1, -1, -1, -1, -1, -1, // 48-63
-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, // 64-79
15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -1, -1, -1, -1, -1, // 80-95
-1, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, // 96-111
41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -1, -1, -1, -1, -1, // 112-127
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 128-143
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 144-159
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 160-175
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 176-191
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 192-207
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 208-223
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, // 224-239
-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 // 240-255
};
return &tab[0];
}
/** Encode a series of octets as a padded, base64 string.
The resulting string will not be null terminated.
@par Requires
The memory pointed to by `out` points to valid memory
of at least `encoded_size(len)` bytes.
@return The number of characters written to `out`. This
will exclude any null termination.
*/
std::size_t
encode(void* dest, void const* src, std::size_t len)
{
char* out = static_cast<char*>(dest);
char const* in = static_cast<char const*>(src);
auto const tab = base64::get_alphabet();
for (auto n = len / 3; n--;)
{
*out++ = tab[(in[0] & 0xfc) >> 2];
*out++ = tab[((in[0] & 0x03) << 4) + ((in[1] & 0xf0) >> 4)];
*out++ = tab[((in[2] & 0xc0) >> 6) + ((in[1] & 0x0f) << 2)];
*out++ = tab[in[2] & 0x3f];
in += 3;
}
switch (len % 3)
{
case 2:
*out++ = tab[(in[0] & 0xfc) >> 2];
*out++ = tab[((in[0] & 0x03) << 4) + ((in[1] & 0xf0) >> 4)];
*out++ = tab[(in[1] & 0x0f) << 2];
*out++ = '=';
break;
case 1:
*out++ = tab[(in[0] & 0xfc) >> 2];
*out++ = tab[((in[0] & 0x03) << 4)];
*out++ = '=';
*out++ = '=';
break;
case 0:
break;
}
return out - static_cast<char*>(dest);
}
/** Decode a padded base64 string into a series of octets.
@par Requires
The memory pointed to by `out` points to valid memory
of at least `decoded_size(len)` bytes.
@return The number of octets written to `out`, and
the number of characters read from the input string,
expressed as a pair.
*/
std::pair<std::size_t, std::size_t>
decode(void* dest, char const* src, std::size_t len)
{
char* out = static_cast<char*>(dest);
auto in = reinterpret_cast<unsigned char const*>(src);
unsigned char c3[3], c4[4];
int i = 0;
int j = 0;
auto const inverse = base64::get_inverse();
while (len-- && *in != '=')
{
auto const v = inverse[*in];
if (v == -1)
break;
++in;
c4[i] = v;
if (++i == 4)
{
c3[0] = (c4[0] << 2) + ((c4[1] & 0x30) >> 4);
c3[1] = ((c4[1] & 0xf) << 4) + ((c4[2] & 0x3c) >> 2);
c3[2] = ((c4[2] & 0x3) << 6) + c4[3];
for (i = 0; i < 3; i++)
*out++ = c3[i];
i = 0;
}
}
if (i)
{
c3[0] = (c4[0] << 2) + ((c4[1] & 0x30) >> 4);
c3[1] = ((c4[1] & 0xf) << 4) + ((c4[2] & 0x3c) >> 2);
c3[2] = ((c4[2] & 0x3) << 6) + c4[3];
for (j = 0; j < i - 1; j++)
*out++ = c3[j];
}
return { out - static_cast<char*>(dest),
in - reinterpret_cast<unsigned char const*>(src) };
}
} // base64
#endif

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#!/usr/bin/env bash
set -e
pushd "$(realpath "$(dirname "$0")")"
CURR_DIR="${PWD}"
BUILD_TYPE="$1"
if [ -z "$BUILD_TYPE" ]; then
BUILD_TYPE=Release
fi
# CI: already had emsdk installed.
if ! command -v emcc; then
if [ ! -d ../../build/emsdk ]; then
git clone https://github.com/emscripten-core/emsdk.git ../../build/emsdk
fi
pushd ../../build/emsdk
./emsdk install 3.0.0
./emsdk activate 3.0.0
source ./emsdk_env.sh
popd # ../../build/emsdk
fi
mkdir -p build/wasm
pushd build/wasm
emcmake cmake -DCMAKE_BUILD_TYPE="$BUILD_TYPE" ../..
make -j
TARGET_FILES="
QmcLegacy.js
QmcWasm.js
QmcWasm.wasm
QmcWasmBundle.js
"
cp $TARGET_FILES "${CURR_DIR}/"
popd # build/wasm
popd

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#include <string.h>
#include <cmath>
#include <vector>
#include <arpa/inet.h>
#include "qmc_key.hpp"
#include "qmc_cipher.hpp"
class QmcDecode {
private:
std::vector<uint8_t> blobData;
std::vector<uint8_t> rawKeyBuf;
std::string cipherType = "";
size_t dataOffset = 0;
size_t keySize = 0;
int mediaVer = 0;
std::string checkType(std::string fn) {
if (fn.find(".qmc") < fn.size() || fn.find(".m") < fn.size())
{
std::string buf_tag = "";
for (int i = 4; i > 0; --i)
{
buf_tag += *((char*)blobData.data() + blobData.size() - i);
}
if (buf_tag == "QTag")
{
keySize = ntohl(*(uint32_t*)(blobData.data() + blobData.size() - 8));
return "QTag";
}
else if (buf_tag == "STag")
{
return "STag";
}
else
{
keySize = (*(uint32_t*)(blobData.data() + blobData.size() - 4));
if (keySize < 0x400)
{
return "Map/RC4";
}
else
{
keySize = 0;
return "Static";
}
}
}
else if (fn.find(".cache") < fn.size())
{
return "cache";
}
else if (fn.find(".tm") < fn.size())
{
return "ios";
}
else
{
return "invalid";
}
}
bool parseRawKeyQTag() {
std::string ketStr = "";
std::string::size_type index = 0;
ketStr.append((char*)rawKeyBuf.data(), rawKeyBuf.size());
index = ketStr.find(",", 0);
if (index != std::string::npos)
{
rawKeyBuf.resize(index);
}
else
{
return false;
}
ketStr = ketStr.substr(index + 1);
index = ketStr.find(",", 0);
if (index != std::string::npos)
{
this->songId = ketStr.substr(0, index);
}
else
{
return false;
}
ketStr = ketStr.substr(index + 1);
index = ketStr.find(",", 0);
if (index == std::string::npos)
{
this->mediaVer = std::stoi(ketStr);
}
else
{
return false;
}
return true;
}
bool readRawKey(size_t tailSize) {
// get raw key data length
rawKeyBuf.resize(keySize);
if (rawKeyBuf.size() != keySize) {
return false;
}
for (size_t i = 0; i < keySize; i++)
{
rawKeyBuf[i] = blobData[i + blobData.size() - (tailSize + keySize)];
}
return true;
}
void DecodeStatic();
void DecodeMapRC4();
void DecodeCache();
void DecodeTm();
public:
bool SetBlob(uint8_t* blob, size_t blobSize) {
blobData.resize(blobSize);
if (blobData.size() != blobSize) {
return false;
}
memcpy(blobData.data(), blob, blobSize);
return true;
}
int PreDecode(std::string ext) {
cipherType = checkType(ext);
size_t tailSize = 0;
if (cipherType == "invalid" || cipherType == "STag") {
error = "file is invalid or not supported (Please downgrade your app).";
return -1;
}
if (cipherType == "QTag") {
tailSize = 8;
}
else if (cipherType == "Map/RC4") {
tailSize = 4;
}
if (keySize > 0) {
if (!readRawKey(tailSize)) {
error = "cannot read embedded key from file";
return -1;
}
if (tailSize == 8) {
cipherType = "Map/RC4";
if (!parseRawKeyQTag()) {
error = "cannot parse embedded key";
return -1;
}
}
std::vector<uint8_t> tmp;
if (!QmcDecryptKey(rawKeyBuf, tmp)) {
error = "cannot decrypt embedded key";
return -1;
}
rawKeyBuf = tmp;
}
return keySize + tailSize;
}
std::vector<uint8_t> Decode(size_t offset);
std::string songId = "";
std::string error = "";
};
void QmcDecode::DecodeStatic()
{
QmcStaticCipher sc;
sc.proc(blobData, dataOffset);
}
void QmcDecode::DecodeMapRC4() {
if (rawKeyBuf.size() > 300)
{
QmcRC4Cipher c(rawKeyBuf, 2);
c.proc(blobData, dataOffset);
}
else
{
QmcMapCipher c(rawKeyBuf, 2);
c.proc(blobData, dataOffset);
}
}
void QmcDecode::DecodeCache()
{
for (size_t i = 0; i < blobData.size(); i++) {
blobData[i] ^= 0xf4;
blobData[i] = ((blobData[i] & 0b00111111) << 2) | (blobData[i] >> 6); // rol 2
}
}
void QmcDecode::DecodeTm()
{
uint8_t const TM_HEADER[] = { 0x00, 0x00, 0x00, 0x20, 0x66, 0x74, 0x79, 0x70 };
for (size_t cur = dataOffset, i = 0; cur < 8 && i < blobData.size(); ++cur, ++i) {
blobData[i] = TM_HEADER[dataOffset];
}
}
std::vector<uint8_t> QmcDecode::Decode(size_t offset)
{
dataOffset = offset;
if (cipherType == "Map/RC4")
{
DecodeMapRC4();
}
else if (cipherType == "Static")
{
DecodeStatic();
}
else if (cipherType == "cache")
{
DecodeCache();
}
else if (cipherType == "ios")
{
DecodeTm();
}
else {
error = "File is invalid or encryption type is not supported.";
}
return blobData;
}

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#include <cstdint>
#include <vector>
class QmcStaticCipher {
private:
uint8_t staticCipherBox[256] = {
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
};
uint8_t getMask(size_t offset) {
if (offset > 0x7fff) offset %= 0x7fff;
return staticCipherBox[(offset * offset + 27) & 0xff];
}
public:
void proc(std::vector<uint8_t>& buf, size_t offset) {
for (size_t i = 0; i < buf.size(); i++) {
buf[i] ^= getMask(offset + i);
}
}
};
class QmcMapCipher {
private:
std::vector<uint8_t> key;
uint8_t rotate(uint8_t value, size_t bits) {
auto rotate = (bits + 4) % 8;
auto left = value << rotate;
auto right = value >> rotate;
return (left | right) & 0xff;
}
uint8_t getMask(size_t offset) {
if (offset > 0x7fff) offset %= 0x7fff;
const auto idx = (offset * offset + 71214) % key.size();
return rotate(key[idx], idx & 0x7);
}
public:
QmcMapCipher(std::vector<uint8_t> &argKey, short operation) {
if (operation == 2)
{
if (argKey.size() == 0) {
return;
}
}
else if (operation == 1)
{
const char WordList[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
srand(time(0));
uint32_t number = 0;
while (number > 300 || number == 0)
{
number = rand();
}
argKey.resize(number);
for (int i = 0; i < argKey.size(); i++) {
number = rand();
argKey[i] = WordList[number % 62];
}
}
else
{
return;
}
key = argKey;
}
void proc(std::vector<uint8_t>& buf, size_t offset) {
for (size_t i = 0; i < buf.size(); i++) {
buf[i] ^= getMask(offset + i);
}
}
};
class QmcRC4Cipher {
public:
void proc(std::vector<uint8_t>& buf, size_t offset) {
// Macro: common code after each process
#define postProcess(len) \
{ \
toProcess -= len; \
processed += len; \
offset += len; \
/* no more data */ \
if (toProcess == 0) { \
return; \
} \
}
size_t toProcess = buf.size();
size_t processed = 0;
std::vector<uint8_t> tmpbuf;
// 前 128 字节使用不同的解密方案
if (offset < FIRST_SEGMENT_SIZE) {
size_t len_segment = std::min(FIRST_SEGMENT_SIZE - offset, buf.size());
tmpbuf.resize(len_segment);
for (size_t i = 0; i < len_segment; i++)
{
tmpbuf[i] = buf[processed + i];
}
procFirstSegment(tmpbuf, offset);
for (size_t i = 0; i < len_segment; i++)
{
buf[processed + i] = tmpbuf[i];
}
postProcess(len_segment);
}
// 区块对齐
if (offset % SEGMENT_SIZE != 0) {
size_t len_segment = std::min(SEGMENT_SIZE - (offset % SEGMENT_SIZE), toProcess);
tmpbuf.resize(len_segment);
for (size_t i = 0; i < len_segment; i++)
{
tmpbuf[i] = buf[processed + i];
}
procASegment(tmpbuf, offset);
for (size_t i = 0; i < len_segment; i++)
{
buf[processed + i] = tmpbuf[i];
}
postProcess(len_segment);
}
// 对每个区块逐一进行解密
while (toProcess > SEGMENT_SIZE) {
tmpbuf.resize(SEGMENT_SIZE);
for (size_t i = 0; i < SEGMENT_SIZE; i++)
{
tmpbuf[i] = buf[processed + i];
}
procASegment(tmpbuf, offset);
for (size_t i = 0; i < SEGMENT_SIZE; i++)
{
buf[processed + i] = tmpbuf[i];
}
postProcess(SEGMENT_SIZE);
}
if (toProcess > 0) {
tmpbuf.resize(toProcess);
for (size_t i = 0; i < toProcess; i++)
{
tmpbuf[i] = buf[processed + i];
}
procASegment(tmpbuf, offset);
for (size_t i = 0; i < toProcess; i++)
{
buf[processed + i] = tmpbuf[i];
}
}
#undef postProcess
}
QmcRC4Cipher(std::vector<uint8_t>& argKey, short operation) {
if (operation == 2)
{
if (argKey.size() == 0) {
return;
}
}
else if (operation == 1)
{
const char WordList[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
srand(time(0));
uint32_t number = 0;
while (number <= 300 || number >= 512)
{
number = rand();
}
argKey.resize(number);
for (int i = 0; i < argKey.size(); i++) {
number = rand();
argKey[i] = WordList[number % 62];
}
}
else
{
return;
}
key = argKey;
// init seed box
S.resize(key.size());
for (size_t i = 0; i < key.size(); ++i) {
S[i] = i & 0xff;
}
size_t j = 0;
for (size_t i = 0; i < key.size(); ++i) {
j = (S[i] + j + key[i % key.size()]) % key.size();
std::swap(S[i], S[j]);
}
// init hash base
hash = 1;
for (size_t i = 0; i < key.size(); i++) {
uint8_t value = key[i];
// ignore if key char is '\x00'
if (!value) continue;
auto next_hash = hash * value;
if (next_hash == 0 || next_hash <= hash) break;
hash = next_hash;
}
}
private:
const size_t FIRST_SEGMENT_SIZE = 0x80;
const size_t SEGMENT_SIZE = 5120;
std::vector<uint8_t> S;
std::vector<uint8_t> key;
uint32_t hash = 1;
void procFirstSegment(std::vector<uint8_t>& buf, size_t offset) {
for (size_t i = 0; i < buf.size(); i++) {
buf[i] ^= key[getSegmentKey(offset + i)];
}
}
void procASegment(std::vector<uint8_t>& buf, size_t offset) {
// Initialise a new seed box
std::vector<uint8_t> nS;
nS = S;
// Calculate the number of bytes to skip.
// The initial "key" derived from segment id, plus the current offset.
int64_t skipLen = (offset % SEGMENT_SIZE) + getSegmentKey(int(offset / SEGMENT_SIZE));
// decrypt the block
size_t j = 0;
size_t k = 0;
int i = -skipLen;
for (; i < (int)buf.size(); i++) {
j = (j + 1) % key.size();
k = (nS[j] + k) % key.size();
std::swap(nS[k], nS[j]);
if (i >= 0) {
buf[i] ^= nS[(nS[j] + nS[k]) % key.size()];
}
}
}
uint64_t getSegmentKey(int id) {
auto seed = key[id % key.size()];
uint64_t idx = ((double)hash / ((id + 1) * seed)) * 100.0;
return idx % key.size();
}
};

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#include"TencentTea.hpp"
#include "base64.hpp"
void simpleMakeKey(uint8_t salt, int length, std::vector<uint8_t> &key_buf) {
for (size_t i = 0; i < length; ++i) {
double tmp = tan((float)salt + (double)i * 0.1);
key_buf[i] = 0xFF & (uint8_t)(fabs(tmp) * 100.0);
}
}
std::vector<uint8_t> v2KeyPrefix = { 0x51, 0x51, 0x4D, 0x75, 0x73, 0x69, 0x63, 0x20, 0x45, 0x6E, 0x63, 0x56, 0x32, 0x2C, 0x4B, 0x65, 0x79, 0x3A };
bool decryptV2Key(std::vector<uint8_t> key, std::vector<uint8_t>& outVec)
{
if (v2KeyPrefix.size() > key.size())
{
return true;
}
for (size_t i = 0; i < v2KeyPrefix.size(); i++)
{
if (key[i] != v2KeyPrefix[i])
{
return true;
}
}
std::vector<uint8_t> mixKey1 = { 0x33, 0x38, 0x36, 0x5A, 0x4A, 0x59, 0x21, 0x40, 0x23, 0x2A, 0x24, 0x25, 0x5E, 0x26, 0x29, 0x28 };
std::vector<uint8_t> mixKey2 = { 0x2A, 0x2A, 0x23, 0x21, 0x28, 0x23, 0x24, 0x25, 0x26, 0x5E, 0x61, 0x31, 0x63, 0x5A, 0x2C, 0x54 };
std::vector<uint8_t> out;
std::vector<uint8_t> tmpKey;
tmpKey.resize(key.size() - 18);
for (size_t i = 0; i < tmpKey.size(); i++)
{
tmpKey[i] = key[18 + i];
}
if (!decryptTencentTea(tmpKey, mixKey1, out))
{
outVec.resize(0);
//EncV2 key decode failed.
return false;
}
tmpKey.resize(out.size());
for (size_t i = 0; i < tmpKey.size(); i++)
{
tmpKey[i] = out[i];
}
out.resize(0);
if (!decryptTencentTea(tmpKey, mixKey2, out))
{
outVec.resize(0);
//EncV2 key decode failed.
return false;
}
outVec.resize(base64::decoded_size(out.size()));
auto n = base64::decode(outVec.data(), (const char*)(out.data()), out.size()).first;
if (n < 16)
{
outVec.resize(0);
//EncV2 key size is too small.
return false;
}
outVec.resize(n);
return true;
}
bool encryptV2Key(std::vector<uint8_t> key, std::vector<uint8_t>& outVec)
{
if (key.size() < 16)
{
outVec.resize(0);
//EncV2 key size is too small.
return false;
}
std::vector<uint8_t> in;
in.resize(base64::encoded_size(key.size()));
auto n = base64::encode(in.data(), (const char*)(key.data()), key.size());
in.resize(n);
std::vector<uint8_t> mixKey1 = { 0x33, 0x38, 0x36, 0x5A, 0x4A, 0x59, 0x21, 0x40, 0x23, 0x2A, 0x24, 0x25, 0x5E, 0x26, 0x29, 0x28 };
std::vector<uint8_t> mixKey2 = { 0x2A, 0x2A, 0x23, 0x21, 0x28, 0x23, 0x24, 0x25, 0x26, 0x5E, 0x61, 0x31, 0x63, 0x5A, 0x2C, 0x54 };
std::vector<uint8_t> tmpKey;
if (!encryptTencentTea(in, mixKey2, tmpKey))
{
outVec.resize(0);
//EncV2 key decode failed.
return false;
}
in.resize(tmpKey.size());
for (size_t i = 0; i < tmpKey.size(); i++)
{
in[i] = tmpKey[i];
}
tmpKey.resize(0);
if (!encryptTencentTea(in, mixKey1, tmpKey))
{
outVec.resize(0);
//EncV2 key decode failed.
return false;
}
outVec.resize(tmpKey.size() + 18);
for (size_t i = 0; i < tmpKey.size(); i++)
{
outVec[18 + i] = tmpKey[i];
}
for (size_t i = 0; i < v2KeyPrefix.size(); i++)
{
outVec[i] = v2KeyPrefix[i];
}
return true;
}
bool QmcDecryptKey(std::vector<uint8_t> raw, std::vector<uint8_t> &outVec) {
std::vector<uint8_t> rawDec;
rawDec.resize(base64::decoded_size(raw.size()));
auto n = base64::decode(rawDec.data(), (const char*)(raw.data()), raw.size()).first;
if (n < 16) {
return false;
//key length is too short
}
rawDec.resize(n);
std::vector<uint8_t> tmpIn = rawDec;
if (!decryptV2Key(tmpIn, rawDec))
{
//decrypt EncV2 failed.
return false;
}
std::vector<uint8_t> simpleKey;
simpleKey.resize(8);
simpleMakeKey(106, 8, simpleKey);
std::vector<uint8_t> teaKey;
teaKey.resize(16);
for (size_t i = 0; i < 8; i++) {
teaKey[i << 1] = simpleKey[i];
teaKey[(i << 1) + 1] = rawDec[i];
}
std::vector<uint8_t> out;
std::vector<uint8_t> tmpRaw;
tmpRaw.resize(rawDec.size() - 8);
for (size_t i = 0; i < tmpRaw.size(); i++)
{
tmpRaw[i] = rawDec[8 + i];
}
if (decryptTencentTea(tmpRaw, teaKey, out))
{
rawDec.resize(8 + out.size());
for (size_t i = 0; i < out.size(); i++)
{
rawDec[8 + i] = out[i];
}
outVec = rawDec;
return true;
}
else
{
return false;
}
}
bool QmcEncryptKey(std::vector<uint8_t> raw, std::vector<uint8_t>& outVec, bool useEncV2 = true) {
std::vector<uint8_t> simpleKey;
simpleKey.resize(8);
simpleMakeKey(106, 8, simpleKey);
std::vector<uint8_t> teaKey;
teaKey.resize(16);
for (size_t i = 0; i < 8; i++) {
teaKey[i << 1] = simpleKey[i];
teaKey[(i << 1) + 1] = raw[i];
}
std::vector<uint8_t> out;
out.resize(raw.size() - 8);
for (size_t i = 0; i < out.size(); i++)
{
out[i] = raw[8 + i];
}
std::vector<uint8_t> tmpRaw;
if (encryptTencentTea(out, teaKey, tmpRaw))
{
raw.resize(tmpRaw.size() + 8);
for (size_t i = 0; i < tmpRaw.size(); i++)
{
raw[i + 8] = tmpRaw[i];
}
if (useEncV2)
{
std::vector<uint8_t> tmpIn = raw;
if (!encryptV2Key(tmpIn, raw))
{
//encrypt EncV2 failed.
return false;
}
}
std::vector<uint8_t> rawEnc;
rawEnc.resize(base64::encoded_size(raw.size()));
auto n = base64::encode(rawEnc.data(), (const char*)(raw.data()), raw.size());
rawEnc.resize(n);
outVec = rawEnc;
return true;
}
else
{
return false;
}
}

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// Polyfill for node.
global.Blob = global.Blob || require("node:buffer").Blob;

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<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()"> </el-button>
</span>
</el-dialog>
</template>
<script>
import { storage } from '@/utils/storage';
import Ruby from './Ruby';
// FIXME:
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>

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<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-edit-dialog {
max-width: 90%;
width: 30em;
}
</style>
<template>
<el-dialog @close="cancel()" title="音乐标签编辑" :visible="show" custom-class="um-edit-dialog" center>
<el-form ref="form" status-icon :model="form" label-width="0">
<section>
<el-image v-show="!editPicture" :src="imgFile.url || picture" style="width: 100px; height: 100px">
<div slot="error" class="image-slot el-image__error">暂无封面</div>
</el-image>
<el-upload v-show="editPicture" :auto-upload="false" :on-change="addFile" :on-remove="rmvFile" :show-file-list="true" :limit="1" list-type="picture" action="" drag>
<i class="el-icon-upload" />
<div class="el-upload__text">将新图片拖到此处<em>点击选择</em><br />以替换自动匹配的图片</div>
<div slot="tip" class="el-upload__tip">
新拖到此处的图片将覆盖原始图片
</div>
</el-upload>
<i
:class="{'el-icon-edit': !editPicture, 'el-icon-check': editPicture}"
@click="changeCover"
></i><br />
标题:
<span v-show="!editTitle">{{title}}</span>
<el-input v-show="editTitle" v-model="title"></el-input>
<i
:class="{'el-icon-edit': !editTitle, 'el-icon-check': editTitle}"
@click="editTitle = !editTitle"
></i><br />
艺术家:
<span v-show="!editArtist">{{artist}}</span>
<el-input v-show="editArtist" v-model="artist"></el-input>
<i
:class="{'el-icon-edit': !editArtist, 'el-icon-check': editArtist}"
@click="editArtist = !editArtist"
></i><br />
专辑:
<span v-show="!editAlbum">{{album}}</span>
<el-input v-show="editAlbum" v-model="album"></el-input>
<i
:class="{'el-icon-edit': !editAlbum, 'el-icon-check': editAlbum}"
@click="editAlbum = !editAlbum"
></i><br />
专辑艺术家:
<span v-show="!editAlbumartist">{{albumartist}}</span>
<el-input v-show="editAlbumartist" v-model="albumartist"></el-input>
<i
:class="{'el-icon-edit': !editAlbumartist, 'el-icon-check': editAlbumartist}"
@click="editAlbumartist = !editAlbumartist"
></i><br />
风格:
<span v-show="!editGenre">{{genre}}</span>
<el-input v-show="editGenre" v-model="genre"></el-input>
<i
:class="{'el-icon-edit': !editGenre, 'el-icon-check': editGenre}"
@click="editGenre = !editGenre"
></i><br />
<p class="item-desc">
为了节省您设备的资源请在确定前充分检查避免反复修改<br />
直接关闭此对话框不会保留所作的更改
</p>
</section>
</el-form>
<span slot="footer" class="dialog-footer">
<el-button type="primary" @click="emitConfirm()"> </el-button>
</span>
</el-dialog>
</template>
<script>
import Ruby from './Ruby';
export default {
components: {
Ruby,
},
props: {
show: { type: Boolean, required: true },
picture: { type: String | undefined, required: true },
title: { type: String | undefined, required: true },
artist: { type: String | undefined, required: true },
album: { type: String | undefined, required: true },
albumartist: { type: String | undefined, required: true },
genre: { type: String | undefined, required: true },
},
data() {
return {
form: {
},
imgFile: { tmpblob: undefined, blob: undefined, url: undefined },
editPicture: false,
editTitle: false,
editArtist: false,
editAlbum: false,
editAlbumartist: false,
editGenre: false,
};
},
async mounted() {
this.refreshForm();
},
methods: {
addFile(file) {
this.imgFile.tmpblob = file.raw;
},
rmvFile() {
this.imgFile.tmpblob = undefined;
},
changeCover() {
this.editPicture = !this.editPicture;
if (!this.editPicture && this.imgFile.tmpblob) {
this.imgFile.blob = this.imgFile.tmpblob;
if (this.imgFile.url) {
URL.revokeObjectURL(this.imgFile.url);
}
this.imgFile.url = URL.createObjectURL(this.imgFile.blob);
}
},
async refreshForm() {
if (this.imgFile.url) {
URL.revokeObjectURL(this.imgFile.url);
}
this.imgFile = { tmpblob: undefined, blob: undefined, url: undefined };
this.editPicture = false;
this.editTitle = false;
this.editArtist = false;
this.editAlbum = false;
this.editAlbumartist = false;
this.editGenre = false;
},
async cancel() {
this.refreshForm();
this.$emit('cancel');
},
async emitConfirm() {
if (this.editPicture) {
this.changeCover();
}
if (this.imgFile.url) {
URL.revokeObjectURL(this.imgFile.url);
}
this.$emit('ok', {
picture: this.imgFile.blob,
title: this.title,
artist: this.artist,
album: this.album,
albumartist: this.albumartist,
genre: this.genre,
});
},
},
};
</script>

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<template>
<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 <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>
<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' }}
<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 />
从而更快的利用并行处理完成解锁
</div>
<i class="el-icon-info" style="font-size: 12px" />
</el-tooltip>
</div>
</div>
<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"
style="margin: 16px 6px 0 6px"
></el-progress>
</transition>
</el-upload>
</template>
<script>
import { spawn, Worker, Pool } from 'threads';
import { Decrypt } from '@/decrypt';
import { DecryptQueue } from '@/utils/utils';
import { storage } from '@/utils/storage';
export default {
name: 'FileSelector',
data() {
return {
task_all: 0,
task_finished: 0,
queue: new DecryptQueue(), // for http or file protocol
parallel: false,
};
},
computed: {
progress_value() {
return this.task_all ? (this.task_finished / this.task_all) * 100 : 0;
},
progress_show() {
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;
} else {
console.log('Using Queue in Main Thread');
}
},
methods: {
progress_string() {
return `${this.task_finished} / ${this.task_all}`;
},
async addFile(file) {
this.task_all++;
this.queue.queue(async (dec = Decrypt) => {
console.log('start handling', file.name);
try {
this.$emit('success', await dec(file, await storage.getAll()));
} catch (e) {
console.error(e);
this.$emit('error', e, file.name);
} finally {
this.task_finished++;
}
});
},
},
};
</script>

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<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>
</el-image>
</template>
</el-table-column>
<el-table-column label="歌曲">
<template #default="scope">
<span>{{ scope.row.title }}</span>
</template>
</el-table-column>
<el-table-column label="歌手">
<template #default="scope">
<p>{{ scope.row.artist }}</p>
</template>
</el-table-column>
<el-table-column label="专辑">
<template #default="scope">
<p>{{ scope.row.album }}</p>
</template>
</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.$index, scope.row)">
</el-button>
<el-button circle icon="el-icon-download" @click="handleDownload(scope.row)"></el-button>
<el-button circle icon="el-icon-edit" @click="handleEdit(scope.row)"></el-button>
<el-button circle icon="el-icon-delete" type="danger" @click="handleDelete(scope.$index, scope.row)">
</el-button>
</template>
</el-table-column>
</el-table>
</template>
<script>
import { RemoveBlobMusic } from '@/utils/utils';
export default {
name: 'PreviewTable',
props: {
tableData: { type: Array, required: true },
policy: { type: Number, required: true },
},
methods: {
handlePlay(index, row) {
this.$emit('play', row.file);
},
handleDelete(index, row) {
RemoveBlobMusic(row);
this.tableData.splice(index, 1);
},
handleDownload(row) {
this.$emit('download', row);
},
handleEdit(row) {
this.$emit('edit', row);
},
},
};
</script>
<style scoped></style>

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<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>

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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');
});
});

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export interface DecryptResult {
title: string;
album?: string;
artist?: string;
mime: string;
ext: 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;
}

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import { Decrypt as Mg3dDecrypt } from '@/decrypt/mg3d';
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 { Decrypt as JooxDecrypt } from '@/decrypt/joox';
import { Decrypt as XimalayaDecrypt } from './ximalaya';
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 'mg3d': // Migu Wav
rt_data = await Mg3dDecrypt(file.raw, raw.name);
break;
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 'qmc0': //QQ Music Android Mp3
case 'qmc3': //QQ Music Android Mp3
case 'qmc2': //QQ Music Android Ogg
case 'qmc4': //QQ Music Android Ogg
case 'qmc6': //QQ Music Android Ogg
case 'qmc8': //QQ Music Android Ogg
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 'mflach': //QQ Music New Flac
case 'mgg': //QQ Music New Ogg
case 'mgg1': //QQ Music New Ogg
case 'mgg0':
case 'mmp4': // QMC MP4 Container w/ E-AC-3 JOC
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;
case 'x2m':
case 'x3m':
rt_data = await XimalayaDecrypt(file.raw, raw.name, raw.ext);
break;
case 'mflach': //QQ Music New Flac
throw '网页版无法解锁,请使用<a target="_blank" href="https://git.unlock-music.dev/um/cli">CLI版本</a>'
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;
}

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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,
};
}

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import {
AudioMimeType,
BytesHasPrefix,
GetArrayBuffer,
GetCoverFromFile,
GetMetaFromFile,
SniffAudioExt,
} from '@/decrypt/utils';
import { parseBlob as metaParseBlob } from 'music-metadata-browser';
import { DecryptResult } from '@/decrypt/entity';
import { DecryptKgmWasm } from '@/decrypt/kgm_wasm';
import { decryptKgmByteAtOffsetV2, decryptVprByteAtOffset } from '@jixun/kugou-crypto/dist/utils/decryptionHelper';
//prettier-ignore
const VprHeader = [
0x05, 0x28, 0xBC, 0x96, 0xE9, 0xE4, 0x5A, 0x43,
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
]
export async function Decrypt(file: File, raw_filename: string, raw_ext: string): Promise<DecryptResult> {
const oriData = await GetArrayBuffer(file);
if (raw_ext === 'vpr') {
if (!BytesHasPrefix(new Uint8Array(oriData), VprHeader)) throw Error('Not a valid vpr file!');
} else {
if (!BytesHasPrefix(new Uint8Array(oriData), KgmHeader)) throw Error('Not a valid kgm(a) file!');
}
let musicDecoded: Uint8Array | undefined;
if (globalThis.WebAssembly) {
console.log('kgm: using wasm decoder');
const kgmDecrypted = await DecryptKgmWasm(oriData, raw_ext);
if (kgmDecrypted.success) {
musicDecoded = kgmDecrypted.data;
console.log('kgm wasm decoder suceeded');
} else {
console.warn('KgmWasm failed with error %s', kgmDecrypted.error || '(unknown error)');
}
}
if (!musicDecoded) {
musicDecoded = new Uint8Array(oriData);
let bHeaderLen = new DataView(musicDecoded.slice(0x10, 0x14).buffer);
let headerLen = bHeaderLen.getUint32(0, true);
let key1 = Array.from(musicDecoded.slice(0x1c, 0x2c));
key1.push(0);
musicDecoded = musicDecoded.slice(headerLen);
let dataLen = musicDecoded.length;
const decryptByte = raw_ext === 'vpr' ? decryptVprByteAtOffset : decryptKgmByteAtOffsetV2;
for (let i = 0; i < dataLen; i++) {
musicDecoded[i] = decryptByte(musicDecoded[i], key1, i);
}
}
const ext = SniffAudioExt(musicDecoded);
const mime = AudioMimeType[ext];
let musicBlob = new Blob([musicDecoded], { type: mime });
const musicMeta = await metaParseBlob(musicBlob);
const { title, artist } = GetMetaFromFile(raw_filename, musicMeta.common.title, String(musicMeta.common.artists || musicMeta.common.artist || ""));
return {
album: musicMeta.common.album,
picture: GetCoverFromFile(musicMeta),
file: URL.createObjectURL(musicBlob),
blob: musicBlob,
ext,
mime,
title,
artist,
};
}

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import KgmCryptoModule from '@/KgmWasm/KgmWasmBundle';
import { MergeUint8Array } from '@/utils/MergeUint8Array';
// 每次处理 2M 的数据
const DECRYPTION_BUF_SIZE = 2 *1024 * 1024;
export interface KGMDecryptionResult {
success: boolean;
data: Uint8Array;
error: string;
}
/**
* KGM
*
* Uint8Array
* @param {ArrayBuffer} kgmBlob Blob
*/
export async function DecryptKgmWasm(kgmBlob: ArrayBuffer, ext: string): Promise<KGMDecryptionResult> {
const result: KGMDecryptionResult = { success: false, data: new Uint8Array(), error: '' };
// 初始化模组
let KgmCrypto: any;
try {
KgmCrypto = await KgmCryptoModule();
} catch (err: any) {
result.error = err?.message || 'wasm 加载失败';
return result;
}
if (!KgmCrypto) {
result.error = '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
let kgmBuf = new Uint8Array(kgmBlob);
const pQmcBuf = KgmCrypto._malloc(DECRYPTION_BUF_SIZE);
KgmCrypto.writeArrayToMemory(kgmBuf.slice(0, DECRYPTION_BUF_SIZE), pQmcBuf);
// 进行解密初始化
const headerSize = KgmCrypto.preDec(pQmcBuf, DECRYPTION_BUF_SIZE, ext);
console.log(headerSize);
kgmBuf = kgmBuf.slice(headerSize);
const decryptedParts = [];
let offset = 0;
let bytesToDecrypt = kgmBuf.length;
while (bytesToDecrypt > 0) {
const blockSize = Math.min(bytesToDecrypt, DECRYPTION_BUF_SIZE);
// 解密一些片段
const blockData = new Uint8Array(kgmBuf.slice(offset, offset + blockSize));
KgmCrypto.writeArrayToMemory(blockData, pQmcBuf);
KgmCrypto.decBlob(pQmcBuf, blockSize, offset);
decryptedParts.push(KgmCrypto.HEAPU8.slice(pQmcBuf, pQmcBuf + blockSize));
offset += blockSize;
bytesToDecrypt -= blockSize;
}
KgmCrypto._free(pQmcBuf);
result.data = MergeUint8Array(decryptedParts);
result.success = true;
return result;
}

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import {
AudioMimeType,
BytesHasPrefix,
GetArrayBuffer,
GetCoverFromFile,
GetMetaFromFile,
SniffAudioExt,
} from '@/decrypt/utils';
import { Decrypt as RawDecrypt } from '@/decrypt/raw';
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 MagicHeader2 = [
0x79, 0x65, 0x65, 0x6C, 0x69, 0x6F, 0x6E, 0x2D,
0x6B, 0x75, 0x77, 0x6F, 0x00, 0x00, 0x00, 0x00,
];
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) && !BytesHasPrefix(oriData, MagicHeader2)) {
if (SniffAudioExt(oriData) === 'aac') {
return await RawDecrypt(file, raw_filename, 'aac', false);
}
throw Error('not a valid kwm file');
}
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];
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, String(musicMeta.common.artists || musicMeta.common.artist || ""));
return {
album: musicMeta.common.album,
picture: GetCoverFromFile(musicMeta),
file: URL.createObjectURL(musicBlob),
blob: musicBlob,
mime,
title,
artist,
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);
for (let i = 0; i < 32; i++) {
key[i] = PreDefinedKey.charCodeAt(i) ^ keyStrTrim.charCodeAt(i);
}
return key;
}
function trimKey(keyRaw: string): string {
let lenRaw = keyRaw.length;
let out = keyRaw;
if (lenRaw > 32) {
out = keyRaw.slice(0, 32);
} else if (lenRaw < 32) {
out = keyRaw.padEnd(32, keyRaw);
}
return out;
}

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import { Decrypt as RawDecrypt } from './raw';
import { GetArrayBuffer } from '@/decrypt/utils';
import { DecryptResult } from '@/decrypt/entity';
const segmentSize = 0x20;
function isPrintableAsciiChar(ch: number) {
return ch >= 0x20 && ch <= 0x7E;
}
function isUpperHexChar(ch: number) {
return (ch >= 0x30 && ch <= 0x39) || (ch >= 0x41 && ch <= 0x46);
}
/**
* @param {Buffer} data
* @param {Buffer} key
* @param {boolean} copy
* @returns Buffer
*/
function decryptSegment(data: Uint8Array, key: Uint8Array) {
for (let i = 0; i < data.byteLength; i++) {
data[i] -= key[i % segmentSize];
}
return Buffer.from(data);
}
export async function Decrypt(file: File, raw_filename: string): Promise<DecryptResult> {
const buf = new Uint8Array(await GetArrayBuffer(file));
// 咪咕编码的 WAV 文件有很多“空洞”内容,尝试密钥。
const header = buf.slice(0, 0x100);
const bytesRIFF = Buffer.from('RIFF', 'ascii');
const bytesWaveFormat = Buffer.from('WAVEfmt ', 'ascii');
const possibleKeys = [];
for (let i = segmentSize; i < segmentSize * 20; i += segmentSize) {
const possibleKey = buf.slice(i, i + segmentSize);
if (!possibleKey.every(isUpperHexChar)) continue;
const tempHeader = decryptSegment(header, possibleKey);
if (tempHeader.slice(0, 4).compare(bytesRIFF)) continue;
if (tempHeader.slice(8, 16).compare(bytesWaveFormat)) continue;
// fmt chunk 大小可以是 16 / 18 / 40。
const fmtChunkSize = tempHeader.readUInt32LE(0x10);
if (![16, 18, 40].includes(fmtChunkSize)) continue;
// 下一个 chunk
const firstDataChunkOffset = 0x14 + fmtChunkSize;
const chunkName = tempHeader.slice(firstDataChunkOffset, firstDataChunkOffset + 4);
if (!chunkName.every(isPrintableAsciiChar)) continue;
const secondDataChunkOffset = firstDataChunkOffset + 8 + tempHeader.readUInt32LE(firstDataChunkOffset + 4);
if (secondDataChunkOffset <= header.byteLength) {
const secondChunkName = tempHeader.slice(secondDataChunkOffset, secondDataChunkOffset + 4);
if (!secondChunkName.every(isPrintableAsciiChar)) continue;
}
possibleKeys.push(Buffer.from(possibleKey).toString('ascii'));
}
if (possibleKeys.length <= 0) {
throw new Error(`ERROR: no suitable key discovered`);
}
const decryptionKey = Buffer.from(possibleKeys[0], 'ascii');
decryptSegment(buf, decryptionKey);
const musicData = new Blob([buf], { type: 'audio/x-wav' });
return await RawDecrypt(musicData, raw_filename, 'wav', false);
}

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import {
AudioMimeType,
BytesHasPrefix,
GetArrayBuffer,
GetImageFromURL,
GetMetaFromFile,
IMusicMeta,
SniffAudioExt,
WriteMetaToFlac,
WriteMetaToMp3,
} from '@/decrypt/utils';
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 || !this.blob) 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,
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();
}
}

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import { AudioMimeType, GetArrayBuffer, GetCoverFromFile, GetMetaFromFile, SniffAudioExt } from '@/decrypt/utils';
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, String(tag.common.artists || tag.common.artist || ""));
return {
title,
artist,
ext,
album: tag.common.album,
picture: GetCoverFromFile(tag),
file: URL.createObjectURL(file),
blob: file,
mime: AudioMimeType[ext],
};
}

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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();
}
});

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import { QmcMapCipher, QmcRC4Cipher, QmcStaticCipher, QmcStreamCipher } from './qmc_cipher';
import { AudioMimeType, GetArrayBuffer, SniffAudioExt } from '@/decrypt/utils';
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;
version: number;
}
export const HandlerMap: { [key: string]: Handler } = {
mgg: { ext: 'ogg', version: 2 },
mgg0: { ext: 'ogg', version: 2 },
mggl: { ext: 'ogg', version: 2 },
mgg1: { ext: 'ogg', version: 2 },
mflac: { ext: 'flac', version: 2 },
mflac0: { ext: 'flac', version: 2 },
mmp4: { ext: 'mmp4', 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: 2 },
qmc2: { ext: 'ogg', version: 2 },
qmc3: { ext: 'mp3', version: 2 },
qmc4: { ext: 'ogg', version: 2 },
qmc6: { ext: 'ogg', version: 2 },
qmc8: { ext: 'ogg', version: 2 },
bkcmp3: { ext: 'mp3', version: 1 },
bkcm4a: { ext: 'm4a', version: 1 },
bkcflac: { ext: 'flac', version: 1 },
bkcwav: { ext: 'wav', version: 1 },
bkcape: { ext: 'ape', version: 1 },
bkcogg: { ext: 'ogg', version: 1 },
bkcwma: { ext: 'wma', 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 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, raw_ext);
// 若 v2 检测失败,降级到 v1 再尝试一次
if (v2Decrypted.success) {
musicDecoded = v2Decrypted.data;
musicID = v2Decrypted.songId;
console.log('qmc wasm decoder suceeded');
} else {
console.warn('QmcWasm failed with error %s', v2Decrypted.error || '(unknown 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;
}
const ext = SniffAudioExt(musicDecoded, handler.ext);
const mime = AudioMimeType[ext];
const { album, artist, imgUrl, blob, title } = await extractQQMusicMeta(
new Blob([musicDecoded], { type: mime }),
raw_filename,
ext,
musicID,
);
return {
title: title,
artist: artist,
ext: ext,
album: album,
picture: imgUrl,
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) === 'STag') {
throw new Error('文件中没有写入密钥无法解锁请降级App并重试');
} else 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 < 0x400) {
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();
}
}
}
private setCipher(keyRaw: Uint8Array) {
const keyDec = QmcDeriveKey(keyRaw);
if (keyDec.length > 300) {
this.cipher = new QmcRC4Cipher(keyDec);
} else {
this.cipher = new QmcMapCipher(keyDec);
}
}
}

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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));
}
});

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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;
}
}

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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);
}
});

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import { TeaCipher } from '@/utils/tea';
const SALT_LEN = 2;
const ZERO_LEN = 7;
export function QmcDeriveKey(raw: Uint8Array): Uint8Array {
const textDec = new TextDecoder();
let rawDec = Buffer.from(textDec.decode(raw), 'base64');
let n = rawDec.length;
if (n < 16) {
throw Error('key length is too short');
}
rawDec = decryptV2Key(rawDec);
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;
}
const mixKey1: Uint8Array = new Uint8Array([ 0x33, 0x38, 0x36, 0x5A, 0x4A, 0x59, 0x21, 0x40, 0x23, 0x2A, 0x24, 0x25, 0x5E, 0x26, 0x29, 0x28 ])
const mixKey2: Uint8Array = new Uint8Array([ 0x2A, 0x2A, 0x23, 0x21, 0x28, 0x23, 0x24, 0x25, 0x26, 0x5E, 0x61, 0x31, 0x63, 0x5A, 0x2C, 0x54 ])
function decryptV2Key(key: Buffer): Buffer
{
const textEnc = new TextDecoder();
if (key.length < 18 || textEnc.decode(key.slice(0, 18)) !== 'QQMusic EncV2,Key:') {
return key;
}
let out = decryptTencentTea(key.slice(18), mixKey1);
out = decryptTencentTea(out, mixKey2);
const textDec = new TextDecoder();
const keyDec = Buffer.from(textDec.decode(out), 'base64');
let n = keyDec.length;
if (n < 16) {
throw Error('EncV2 key decode failed');
}
return keyDec;
}
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;
}

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import QmcCryptoModule from '@/QmcWasm/QmcWasmBundle';
import { MergeUint8Array } from '@/utils/MergeUint8Array';
// 每次处理 2M 的数据
const DECRYPTION_BUF_SIZE = 2 *1024 * 1024;
export interface QMCDecryptionResult {
success: boolean;
data: Uint8Array;
songId: string | number;
error: string;
}
/**
* QMC
*
* Uint8Array
* @param {ArrayBuffer} qmcBlob Blob
*/
export async function DecryptQmcWasm(qmcBlob: ArrayBuffer, ext: string): Promise<QMCDecryptionResult> {
const result: QMCDecryptionResult = { success: false, data: new Uint8Array(), songId: 0, error: '' };
// 初始化模组
let QmcCrypto: any;
try {
QmcCrypto = await QmcCryptoModule();
} catch (err: any) {
result.error = err?.message || 'wasm 加载失败';
return result;
}
if (!QmcCrypto) {
result.error = '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 qmcBuf = new Uint8Array(qmcBlob);
const pQmcBuf = QmcCrypto._malloc(DECRYPTION_BUF_SIZE);
QmcCrypto.writeArrayToMemory(qmcBuf.slice(-DECRYPTION_BUF_SIZE), pQmcBuf);
// 进行解密初始化
ext = '.' + ext;
const tailSize = QmcCrypto.preDec(pQmcBuf, DECRYPTION_BUF_SIZE, ext);
if (tailSize == -1) {
result.error = QmcCrypto.getError();
return result;
} else {
result.songId = QmcCrypto.getSongId();
result.songId = result.songId == "0" ? 0 : result.songId;
}
const decryptedParts = [];
let offset = 0;
let bytesToDecrypt = qmcBuf.length - tailSize;
while (bytesToDecrypt > 0) {
const blockSize = Math.min(bytesToDecrypt, DECRYPTION_BUF_SIZE);
// 解密一些片段
const blockData = new Uint8Array(qmcBuf.slice(offset, offset + blockSize));
QmcCrypto.writeArrayToMemory(blockData, pQmcBuf);
decryptedParts.push(QmcCrypto.HEAPU8.slice(pQmcBuf, pQmcBuf + QmcCrypto.decBlob(pQmcBuf, blockSize, offset)));
offset += blockSize;
bytesToDecrypt -= blockSize;
}
QmcCrypto._free(pQmcBuf);
result.data = MergeUint8Array(decryptedParts);
result.success = true;
return result;
}

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import {
AudioMimeType,
GetArrayBuffer,
GetCoverFromFile,
GetMetaFromFile,
SniffAudioExt,
SplitFilename,
} from '@/decrypt/utils';
import { Decrypt as QmcDecrypt, HandlerMap } from '@/decrypt/qmc';
import { DecryptQmcWasm } from '@/decrypt/qmc_wasm';
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 = await GetArrayBuffer(file);
let musicDecoded: Uint8Array | undefined;
if (globalThis.WebAssembly) {
console.log('qmc: using wasm decoder');
const qmcDecrypted = await DecryptQmcWasm(buffer, raw_ext);
// 若 wasm 失败,使用 js 再尝试一次
if (qmcDecrypted.success) {
musicDecoded = qmcDecrypted.data;
console.log('qmc wasm decoder suceeded');
} else {
console.warn('QmcWasm failed with error %s', qmcDecrypted.error || '(unknown error)');
}
}
if (!musicDecoded) {
musicDecoded = new Uint8Array(buffer);
let length = musicDecoded.length;
for (let i = 0; i < length; i++) {
let byte = musicDecoded[i] ^ 0xf4; // xor 0xf4
byte = ((byte & 0b0011_1111) << 2) | (byte >> 6); // rol 2
musicDecoded[i] = byte;
}
}
let ext = SniffAudioExt(musicDecoded, '');
const newName = SplitFilename(raw_filename);
let audioBlob: Blob;
if (ext !== '' || newName.ext === 'mp3') {
audioBlob = new Blob([musicDecoded], { type: AudioMimeType[ext] });
} else if (newName.ext in HandlerMap) {
audioBlob = new Blob([musicDecoded], { type: 'application/octet-stream' });
return QmcDecrypt(audioBlob, newName.name, newName.ext);
} else {
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, String(tag.common.artists || tag.common.artist || ""));
return {
title,
artist,
ext,
album: tag.common.album,
picture: GetCoverFromFile(tag),
file: URL.createObjectURL(audioBlob),
blob: audioBlob,
mime: AudioMimeType[ext],
};
}

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import { AudioMimeType, GetArrayBuffer, GetCoverFromFile, GetMetaFromFile, SniffAudioExt } from '@/decrypt/utils';
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,
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] });
}
const tag = await metaParseBlob(file);
const { title, artist } = GetMetaFromFile(raw_filename, tag.common.title, String(tag.common.artists || tag.common.artist || ''));
return {
title,
artist,
ext,
album: tag.common.album,
picture: GetCoverFromFile(tag),
file: URL.createObjectURL(file),
blob: file,
mime: AudioMimeType[ext],
};
}

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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];
export async function Decrypt(file: File, raw_filename: string): Promise<DecryptResult> {
const audioData = new Uint8Array(await GetArrayBuffer(file));
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);
}

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import { IAudioMetadata } from 'music-metadata-browser';
import ID3Writer from 'browser-id3-writer';
import MetaFlac from 'metaflac-js';
export const split_regex = /[ ]?[,;/_、][ ]?/;
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 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];
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',
};
export function BytesHasPrefix(data: Uint8Array, prefix: number[]): boolean {
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';
return fallback_ext;
}
export function GetArrayBuffer(obj: Blob): Promise<ArrayBuffer> {
if (!!obj.arrayBuffer) return obj.arrayBuffer();
return new Promise((resolve, reject) => {
const reader = new FileReader();
reader.onload = (e) => {
const rs = e.target?.result;
if (!rs) {
reject('read file failed');
} else {
resolve(rs as ArrayBuffer);
}
};
reader.readAsArrayBuffer(obj);
});
}
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 '';
}
export interface IMusicMetaBasic {
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 };
const items = filename.split(separator);
if (items.length > 1) {
//由文件名和原metadata共同决定歌手tag(有时从文件名看有多个歌手而metadata只有一个)
if (!meta.artist || meta.artist.split(split_regex).length < items[0].trim().split(split_regex).length) meta.artist = items[0].trim();
if (!meta.title) meta.title = items[1].trim();
} else if (items.length === 1) {
if (!meta.title) meta.title = items[0].trim();
}
return meta;
}
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 buffer = await resp.arrayBuffer();
const url = URL.createObjectURL(new Blob([buffer], { type: mime }));
return { buffer, url, mime };
}
} catch (e) {
console.warn(e);
}
}
export interface IMusicMeta {
title: string;
artists?: string[];
album?: string;
albumartist?: string;
genre?: 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) => {
if (frame.id !== 'TPE1' && frame.id !== 'TIT2' && frame.id !== 'TALB') {
try {
writer.setFrame(frame.id, frame.value);
} catch (e) {
console.warn(`failed to write ID3 tag '${frame.id}'`);
}
}
});
const old = original.common;
writer
.setFrame('TPE1', old?.artists || info.artists || [])
.setFrame('TIT2', old?.title || info.title)
.setFrame('TALB', old?.album || info.album || '');
if (info.picture) {
writer.setFrame('APIC', {
type: 3,
data: info.picture,
description: info.picture_desc || '',
});
}
return writer.addTag();
}
export function WriteMetaToFlac(audioData: Buffer, info: IMusicMeta, original: IAudioMetadata) {
const writer = new MetaFlac(audioData);
const old = original.common;
if (!old.title && !old.album && old.artists) {
writer.setTag('TITLE=' + info.title);
writer.setTag('ALBUM=' + info.album);
if (info.artists) {
writer.removeTag('ARTIST');
info.artists.forEach((artist) => writer.setTag('ARTIST=' + artist));
}
}
if (info.picture) {
writer.importPictureFromBuffer(Buffer.from(info.picture));
}
return writer.save();
}
export function RewriteMetaToMp3(audioData: Buffer, info: IMusicMeta, original: IAudioMetadata) {
const writer = new ID3Writer(audioData);
// preserve original data
const frames = original.native['ID3v2.4'] || original.native['ID3v2.3'] || original.native['ID3v2.2'] || [];
frames.forEach((frame) => {
if (frame.id !== 'TPE1'
&& frame.id !== 'TIT2'
&& frame.id !== 'TALB'
&& frame.id !== 'TPE2'
&& frame.id !== 'TCON'
) {
try {
writer.setFrame(frame.id, frame.value);
} catch (e) {
throw new Error(`failed to write ID3 tag '${frame.id}'`);
}
}
});
const old = original.common;
writer
.setFrame('TPE1', info?.artists || old.artists || [])
.setFrame('TIT2', info?.title || old.title)
.setFrame('TALB', info?.album || old.album || '')
.setFrame('TPE2', info?.albumartist || old.albumartist || '')
.setFrame('TCON', info?.genre || old.genre || []);
if (info.picture) {
writer.setFrame('APIC', {
type: 3,
data: info.picture,
description: info.picture_desc || '',
});
}
return writer.addTag();
}
export function RewriteMetaToFlac(audioData: Buffer, info: IMusicMeta, original: IAudioMetadata) {
const writer = new MetaFlac(audioData);
const old = original.common;
if (info.title) {
if (old.title) {
writer.removeTag('TITLE');
}
writer.setTag('TITLE=' + info.title);
}
if (info.album) {
if (old.album) {
writer.removeTag('ALBUM');
}
writer.setTag('ALBUM=' + info.album);
}
if (info.albumartist) {
if (old.albumartist) {
writer.removeTag('ALBUMARTIST');
}
writer.setTag('ALBUMARTIST=' + info.albumartist);
}
if (info.artists) {
if (old.artists) {
writer.removeTag('ARTIST');
}
info.artists.forEach((artist) => writer.setTag('ARTIST=' + artist));
}
if (info.genre) {
if (old.genre) {
writer.removeTag('GENRE');
}
info.genre.forEach((singlegenre) => writer.setTag('GENRE=' + singlegenre));
}
if (info.picture) {
writer.importPictureFromBuffer(Buffer.from(info.picture));
}
return writer.save();
}
export function SplitFilename(n: string): { name: string; ext: string } {
const pos = n.lastIndexOf('.');
return {
ext: n.substring(pos + 1).toLowerCase(),
name: n.substring(0, pos),
};
}

193
src/decrypt/ximalaya.ts Normal file
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import { parseBlob as metaParseBlob } from 'music-metadata-browser';
import { AudioMimeType, SniffAudioExt, GetArrayBuffer, GetMetaFromFile } from './utils';
import { DecryptResult } from '@/decrypt/entity';
const HandlerMap: Map<string, (data: Uint8Array) => Uint8Array> = new Map([
['x2m', ProcessX2M],
['x3m', ProcessX3M],
]);
export async function Decrypt(file: File, raw_filename: string, raw_ext: string): Promise<DecryptResult> {
const buffer = new Uint8Array(await GetArrayBuffer(file));
const handler = HandlerMap.get(raw_ext);
if (!handler) throw 'File type is incorrect!';
let musicDecoded: Uint8Array = handler(buffer);
const ext = SniffAudioExt(musicDecoded, 'm4a');
const mime = AudioMimeType[ext];
let musicBlob = new Blob([musicDecoded], { type: mime });
const musicMeta = await metaParseBlob(musicBlob);
const info = GetMetaFromFile(raw_filename, musicMeta.common.title, musicMeta.common.artist);
return {
picture: '',
title: info.title,
artist: info.artist,
ext: ext,
album: musicMeta.common.album,
blob: musicBlob,
file: URL.createObjectURL(musicBlob),
mime: mime,
};
}
function ProcessX2M(data: Uint8Array) {
const x2mHeaderSize = 1024;
const x2mKey = [0x78, 0x6d, 0x6c, 0x79];
let encryptedHeader = data.slice(0, x2mHeaderSize);
for (let idx = 0; idx < x2mHeaderSize; idx++) {
let srcIdx = x2mScrambleTable[idx];
data[idx] = encryptedHeader[srcIdx] ^ x2mKey[idx % x2mKey.length];
}
return data;
}
function ProcessX3M(data: Uint8Array) {
const x3mHeaderSize = 1024;
//prettier-ignore: uint8, size 32(8x4)
const x3mKey = [
0x33, 0x39, 0x38, 0x39, 0x64, 0x31, 0x31, 0x31, 0x61, 0x61, 0x64, 0x35, 0x36, 0x31, 0x33, 0x39, 0x34, 0x30, 0x66,
0x34, 0x66, 0x63, 0x34, 0x34, 0x62, 0x36, 0x33, 0x39, 0x62, 0x32, 0x39, 0x32,
];
let encryptedHeader = data.slice(0, x3mHeaderSize);
for (let dstIdx = 0; dstIdx < x3mHeaderSize; dstIdx++) {
let srcIdx = x3mScrambleTable[dstIdx];
data[dstIdx] = encryptedHeader[srcIdx] ^ x3mKey[dstIdx % x3mKey.length];
}
return data;
}
//prettier-ignore: uint16, size 1024 (64x16)
const x2mScrambleTable = [
0x2a9, 0x2ab, 0x154, 0x2aa, 0x2a8, 0x2ac, 0x153, 0x2a7, 0x2ad, 0x152, 0x2a6, 0x3ff, 0x000, 0x155, 0x2ae, 0x151, 0x2a5,
0x3fe, 0x001, 0x156, 0x2af, 0x150, 0x2a4, 0x3fd, 0x002, 0x157, 0x2b0, 0x14f, 0x2a3, 0x3fc, 0x003, 0x158, 0x2b1, 0x14e,
0x2a2, 0x3fb, 0x004, 0x159, 0x2b2, 0x14d, 0x2a1, 0x3fa, 0x005, 0x15a, 0x2b3, 0x14c, 0x2a0, 0x3f9, 0x006, 0x15b, 0x2b4,
0x14b, 0x29f, 0x3f8, 0x007, 0x15c, 0x2b5, 0x14a, 0x29e, 0x3f7, 0x008, 0x15d, 0x2b6, 0x149, 0x29d, 0x3f6, 0x009, 0x15e,
0x2b7, 0x148, 0x29c, 0x3f5, 0x00a, 0x15f, 0x2b8, 0x147, 0x29b, 0x3f4, 0x00b, 0x160, 0x2b9, 0x146, 0x29a, 0x3f3, 0x00c,
0x161, 0x2ba, 0x145, 0x299, 0x3f2, 0x00d, 0x162, 0x2bb, 0x144, 0x298, 0x3f1, 0x00e, 0x163, 0x2bc, 0x143, 0x297, 0x3f0,
0x00f, 0x164, 0x2bd, 0x142, 0x296, 0x3ef, 0x010, 0x165, 0x2be, 0x141, 0x295, 0x3ee, 0x011, 0x166, 0x2bf, 0x140, 0x294,
0x3ed, 0x012, 0x167, 0x2c0, 0x13f, 0x293, 0x3ec, 0x013, 0x168, 0x2c1, 0x13e, 0x292, 0x3eb, 0x014, 0x169, 0x2c2, 0x13d,
0x291, 0x3ea, 0x015, 0x16a, 0x2c3, 0x13c, 0x290, 0x3e9, 0x016, 0x16b, 0x2c4, 0x13b, 0x28f, 0x3e8, 0x017, 0x16c, 0x2c5,
0x13a, 0x28e, 0x3e7, 0x018, 0x16d, 0x2c6, 0x139, 0x28d, 0x3e6, 0x019, 0x16e, 0x2c7, 0x138, 0x28c, 0x3e5, 0x01a, 0x16f,
0x2c8, 0x137, 0x28b, 0x3e4, 0x01b, 0x170, 0x2c9, 0x136, 0x28a, 0x3e3, 0x01c, 0x171, 0x2ca, 0x135, 0x289, 0x3e2, 0x01d,
0x172, 0x2cb, 0x134, 0x288, 0x3e1, 0x01e, 0x173, 0x2cc, 0x133, 0x287, 0x3e0, 0x01f, 0x174, 0x2cd, 0x0a9, 0x1fe, 0x357,
0x020, 0x175, 0x2ce, 0x0aa, 0x1ff, 0x358, 0x021, 0x176, 0x2cf, 0x0ab, 0x200, 0x359, 0x022, 0x177, 0x2d0, 0x0ac, 0x201,
0x35a, 0x023, 0x178, 0x2d1, 0x0ad, 0x202, 0x35b, 0x024, 0x179, 0x2d2, 0x0ae, 0x203, 0x35c, 0x025, 0x17a, 0x2d3, 0x0af,
0x204, 0x35d, 0x026, 0x17b, 0x2d4, 0x0b0, 0x205, 0x35e, 0x027, 0x17c, 0x2d5, 0x0b1, 0x206, 0x35f, 0x028, 0x17d, 0x2d6,
0x0b2, 0x207, 0x360, 0x029, 0x17e, 0x2d7, 0x0b3, 0x208, 0x361, 0x02a, 0x17f, 0x2d8, 0x0b4, 0x209, 0x362, 0x02b, 0x180,
0x2d9, 0x0b5, 0x20a, 0x363, 0x02c, 0x181, 0x2da, 0x0b6, 0x20b, 0x364, 0x02d, 0x182, 0x2db, 0x0b7, 0x20c, 0x365, 0x02e,
0x183, 0x2dc, 0x0b8, 0x20d, 0x366, 0x02f, 0x184, 0x2dd, 0x0b9, 0x20e, 0x367, 0x030, 0x185, 0x2de, 0x0ba, 0x20f, 0x368,
0x031, 0x186, 0x2df, 0x0bb, 0x210, 0x369, 0x032, 0x187, 0x2e0, 0x0bc, 0x211, 0x36a, 0x033, 0x188, 0x2e1, 0x0bd, 0x212,
0x36b, 0x034, 0x189, 0x2e2, 0x0be, 0x213, 0x36c, 0x035, 0x18a, 0x2e3, 0x0bf, 0x214, 0x36d, 0x036, 0x18b, 0x2e4, 0x0c0,
0x215, 0x36e, 0x037, 0x18c, 0x2e5, 0x0c1, 0x216, 0x36f, 0x038, 0x18d, 0x2e6, 0x0c2, 0x217, 0x370, 0x039, 0x18e, 0x2e7,
0x0c3, 0x218, 0x371, 0x03a, 0x18f, 0x2e8, 0x0c4, 0x219, 0x372, 0x03b, 0x190, 0x2e9, 0x0c5, 0x21a, 0x373, 0x03c, 0x191,
0x2ea, 0x0c6, 0x21b, 0x374, 0x03d, 0x192, 0x2eb, 0x0c7, 0x21c, 0x375, 0x03e, 0x193, 0x2ec, 0x0c8, 0x21d, 0x376, 0x03f,
0x194, 0x2ed, 0x0c9, 0x21e, 0x377, 0x040, 0x195, 0x2ee, 0x0ca, 0x21f, 0x378, 0x041, 0x196, 0x2ef, 0x0cb, 0x220, 0x379,
0x042, 0x197, 0x2f0, 0x0cc, 0x221, 0x37a, 0x043, 0x198, 0x2f1, 0x0cd, 0x222, 0x37b, 0x044, 0x199, 0x2f2, 0x0ce, 0x223,
0x37c, 0x045, 0x19a, 0x2f3, 0x0cf, 0x224, 0x37d, 0x046, 0x19b, 0x2f4, 0x0d0, 0x225, 0x37e, 0x047, 0x19c, 0x2f5, 0x0d1,
0x226, 0x37f, 0x048, 0x19d, 0x2f6, 0x0d2, 0x227, 0x380, 0x049, 0x19e, 0x2f7, 0x0d3, 0x228, 0x381, 0x04a, 0x19f, 0x2f8,
0x0d4, 0x229, 0x382, 0x04b, 0x1a0, 0x2f9, 0x0d5, 0x22a, 0x383, 0x04c, 0x1a1, 0x2fa, 0x0d6, 0x22b, 0x384, 0x04d, 0x1a2,
0x2fb, 0x0d7, 0x22c, 0x385, 0x04e, 0x1a3, 0x2fc, 0x0d8, 0x22d, 0x386, 0x04f, 0x1a4, 0x2fd, 0x0d9, 0x22e, 0x387, 0x050,
0x1a5, 0x2fe, 0x0da, 0x22f, 0x388, 0x051, 0x1a6, 0x2ff, 0x0db, 0x230, 0x389, 0x052, 0x1a7, 0x300, 0x0dc, 0x231, 0x38a,
0x053, 0x1a8, 0x301, 0x0dd, 0x232, 0x38b, 0x054, 0x1a9, 0x302, 0x0de, 0x233, 0x38c, 0x055, 0x1aa, 0x303, 0x0df, 0x234,
0x38d, 0x056, 0x1ab, 0x304, 0x0e0, 0x235, 0x38e, 0x057, 0x1ac, 0x305, 0x0e1, 0x236, 0x38f, 0x058, 0x1ad, 0x306, 0x0e2,
0x237, 0x390, 0x059, 0x1ae, 0x307, 0x0e3, 0x238, 0x391, 0x05a, 0x1af, 0x308, 0x0e4, 0x239, 0x392, 0x05b, 0x1b0, 0x309,
0x0e5, 0x23a, 0x393, 0x05c, 0x1b1, 0x30a, 0x0e6, 0x23b, 0x394, 0x05d, 0x1b2, 0x30b, 0x0e7, 0x23c, 0x395, 0x05e, 0x1b3,
0x30c, 0x0e8, 0x23d, 0x396, 0x05f, 0x1b4, 0x30d, 0x0e9, 0x23e, 0x397, 0x060, 0x1b5, 0x30e, 0x0ea, 0x23f, 0x398, 0x061,
0x1b6, 0x30f, 0x0eb, 0x240, 0x399, 0x062, 0x1b7, 0x310, 0x0ec, 0x241, 0x39a, 0x063, 0x1b8, 0x311, 0x0ed, 0x242, 0x39b,
0x064, 0x1b9, 0x312, 0x0ee, 0x243, 0x39c, 0x065, 0x1ba, 0x313, 0x0ef, 0x244, 0x39d, 0x066, 0x1bb, 0x314, 0x0f0, 0x245,
0x39e, 0x067, 0x1bc, 0x315, 0x0f1, 0x246, 0x39f, 0x068, 0x1bd, 0x316, 0x0f2, 0x247, 0x3a0, 0x069, 0x1be, 0x317, 0x0f3,
0x248, 0x3a1, 0x06a, 0x1bf, 0x318, 0x0f4, 0x249, 0x3a2, 0x06b, 0x1c0, 0x319, 0x0f5, 0x24a, 0x3a3, 0x06c, 0x1c1, 0x31a,
0x0f6, 0x24b, 0x3a4, 0x06d, 0x1c2, 0x31b, 0x0f7, 0x24c, 0x3a5, 0x06e, 0x1c3, 0x31c, 0x0f8, 0x24d, 0x3a6, 0x06f, 0x1c4,
0x31d, 0x0f9, 0x24e, 0x3a7, 0x070, 0x1c5, 0x31e, 0x0fa, 0x24f, 0x3a8, 0x071, 0x1c6, 0x31f, 0x0fb, 0x250, 0x3a9, 0x072,
0x1c7, 0x320, 0x0fc, 0x251, 0x3aa, 0x073, 0x1c8, 0x321, 0x0fd, 0x252, 0x3ab, 0x074, 0x1c9, 0x322, 0x0fe, 0x253, 0x3ac,
0x075, 0x1ca, 0x323, 0x0ff, 0x254, 0x3ad, 0x076, 0x1cb, 0x324, 0x100, 0x255, 0x3ae, 0x077, 0x1cc, 0x325, 0x101, 0x256,
0x3af, 0x078, 0x1cd, 0x326, 0x102, 0x257, 0x3b0, 0x079, 0x1ce, 0x327, 0x103, 0x258, 0x3b1, 0x07a, 0x1cf, 0x328, 0x104,
0x259, 0x3b2, 0x07b, 0x1d0, 0x329, 0x105, 0x25a, 0x3b3, 0x07c, 0x1d1, 0x32a, 0x106, 0x25b, 0x3b4, 0x07d, 0x1d2, 0x32b,
0x107, 0x25c, 0x3b5, 0x07e, 0x1d3, 0x32c, 0x108, 0x25d, 0x3b6, 0x07f, 0x1d4, 0x32d, 0x109, 0x25e, 0x3b7, 0x080, 0x1d5,
0x32e, 0x10a, 0x25f, 0x3b8, 0x081, 0x1d6, 0x32f, 0x10b, 0x260, 0x3b9, 0x082, 0x1d7, 0x330, 0x10c, 0x261, 0x3ba, 0x083,
0x1d8, 0x331, 0x10d, 0x262, 0x3bb, 0x084, 0x1d9, 0x332, 0x10e, 0x263, 0x3bc, 0x085, 0x1da, 0x333, 0x10f, 0x264, 0x3bd,
0x086, 0x1db, 0x334, 0x110, 0x265, 0x3be, 0x087, 0x1dc, 0x335, 0x111, 0x266, 0x3bf, 0x088, 0x1dd, 0x336, 0x112, 0x267,
0x3c0, 0x089, 0x1de, 0x337, 0x113, 0x268, 0x3c1, 0x08a, 0x1df, 0x338, 0x114, 0x269, 0x3c2, 0x08b, 0x1e0, 0x339, 0x115,
0x26a, 0x3c3, 0x08c, 0x1e1, 0x33a, 0x116, 0x26b, 0x3c4, 0x08d, 0x1e2, 0x33b, 0x117, 0x26c, 0x3c5, 0x08e, 0x1e3, 0x33c,
0x118, 0x26d, 0x3c6, 0x08f, 0x1e4, 0x33d, 0x119, 0x26e, 0x3c7, 0x090, 0x1e5, 0x33e, 0x11a, 0x26f, 0x3c8, 0x091, 0x1e6,
0x33f, 0x11b, 0x270, 0x3c9, 0x092, 0x1e7, 0x340, 0x11c, 0x271, 0x3ca, 0x093, 0x1e8, 0x341, 0x11d, 0x272, 0x3cb, 0x094,
0x1e9, 0x342, 0x11e, 0x273, 0x3cc, 0x095, 0x1ea, 0x343, 0x11f, 0x274, 0x3cd, 0x096, 0x1eb, 0x344, 0x120, 0x275, 0x3ce,
0x097, 0x1ec, 0x345, 0x121, 0x276, 0x3cf, 0x098, 0x1ed, 0x346, 0x122, 0x277, 0x3d0, 0x099, 0x1ee, 0x347, 0x123, 0x278,
0x3d1, 0x09a, 0x1ef, 0x348, 0x124, 0x279, 0x3d2, 0x09b, 0x1f0, 0x349, 0x125, 0x27a, 0x3d3, 0x09c, 0x1f1, 0x34a, 0x126,
0x27b, 0x3d4, 0x09d, 0x1f2, 0x34b, 0x127, 0x27c, 0x3d5, 0x09e, 0x1f3, 0x34c, 0x128, 0x27d, 0x3d6, 0x09f, 0x1f4, 0x34d,
0x129, 0x27e, 0x3d7, 0x0a0, 0x1f5, 0x34e, 0x12a, 0x27f, 0x3d8, 0x0a1, 0x1f6, 0x34f, 0x12b, 0x280, 0x3d9, 0x0a2, 0x1f7,
0x350, 0x12c, 0x281, 0x3da, 0x0a3, 0x1f8, 0x351, 0x12d, 0x282, 0x3db, 0x0a4, 0x1f9, 0x352, 0x12e, 0x283, 0x3dc, 0x0a5,
0x1fa, 0x353, 0x12f, 0x284, 0x3dd, 0x0a6, 0x1fb, 0x354, 0x130, 0x285, 0x3de, 0x0a7, 0x1fc, 0x355, 0x131, 0x286, 0x3df,
0x0a8, 0x1fd, 0x356, 0x132,
];
//prettier-ignore: uint16, size 1024 (64x16)
const x3mScrambleTable = [
0x256, 0x28d, 0x213, 0x307, 0x156, 0x39d, 0x062, 0x170, 0x3ca, 0x035, 0x0ed, 0x2a4, 0x1e4, 0x359, 0x0d3, 0x26b, 0x265,
0x274, 0x251, 0x297, 0x202, 0x322, 0x126, 0x32b, 0x117, 0x302, 0x15c, 0x3a8, 0x057, 0x148, 0x380, 0x090, 0x1f6, 0x335,
0x10c, 0x2ee, 0x175, 0x3d4, 0x02b, 0x0cc, 0x260, 0x27b, 0x23d, 0x2bb, 0x1b6, 0x3a1, 0x05e, 0x157, 0x39e, 0x061, 0x16f,
0x3c6, 0x039, 0x0f7, 0x2b9, 0x1b8, 0x39f, 0x060, 0x166, 0x3b9, 0x046, 0x122, 0x31c, 0x12f, 0x33d, 0x0fc, 0x2ca, 0x1a4,
0x3cc, 0x033, 0x0e6, 0x293, 0x209, 0x315, 0x13d, 0x358, 0x0d5, 0x26e, 0x25e, 0x27d, 0x23a, 0x2c0, 0x1b1, 0x3af, 0x050,
0x136, 0x346, 0x0ef, 0x2aa, 0x1ce, 0x376, 0x0a0, 0x210, 0x30c, 0x14c, 0x389, 0x082, 0x1db, 0x367, 0x0b9, 0x23e, 0x2ba,
0x1b7, 0x3a0, 0x05f, 0x164, 0x3b7, 0x048, 0x125, 0x326, 0x11c, 0x30a, 0x14f, 0x38f, 0x070, 0x1a8, 0x3c7, 0x038, 0x0f5,
0x2b5, 0x1bd, 0x393, 0x06c, 0x199, 0x3e1, 0x01e, 0x0b3, 0x22f, 0x2d7, 0x193, 0x3ea, 0x015, 0x09d, 0x20a, 0x314, 0x13e,
0x35a, 0x0d2, 0x26a, 0x267, 0x272, 0x253, 0x294, 0x208, 0x319, 0x137, 0x34c, 0x0e7, 0x295, 0x205, 0x31d, 0x12e, 0x33c,
0x0fe, 0x2cd, 0x1a0, 0x3d5, 0x02a, 0x0c8, 0x258, 0x286, 0x22a, 0x2dc, 0x18e, 0x3f7, 0x008, 0x07c, 0x1d3, 0x370, 0x0a7,
0x21d, 0x2f1, 0x171, 0x3cd, 0x032, 0x0e5, 0x292, 0x20b, 0x313, 0x13f, 0x35c, 0x0d0, 0x266, 0x273, 0x252, 0x296, 0x204,
0x31f, 0x12a, 0x332, 0x10f, 0x2f4, 0x16c, 0x3c3, 0x03c, 0x101, 0x2d2, 0x19a, 0x3e0, 0x01f, 0x0b5, 0x233, 0x2c9, 0x1a6,
0x3c9, 0x036, 0x0f0, 0x2ab, 0x1cb, 0x37c, 0x095, 0x1fd, 0x328, 0x11a, 0x306, 0x158, 0x3a2, 0x05d, 0x155, 0x39c, 0x063,
0x174, 0x3d3, 0x02c, 0x0cf, 0x264, 0x275, 0x24f, 0x299, 0x1fa, 0x32c, 0x115, 0x2ff, 0x15f, 0x3ab, 0x054, 0x143, 0x36c,
0x0ad, 0x225, 0x2e5, 0x181, 0x3ef, 0x010, 0x08c, 0x1f1, 0x344, 0x0f3, 0x2af, 0x1c4, 0x386, 0x088, 0x1e3, 0x35b, 0x0d1,
0x269, 0x268, 0x26d, 0x25f, 0x27c, 0x23b, 0x2bf, 0x1b2, 0x3ae, 0x051, 0x13b, 0x355, 0x0da, 0x278, 0x248, 0x2a6, 0x1dc,
0x365, 0x0c0, 0x246, 0x2a8, 0x1d6, 0x36d, 0x0ac, 0x224, 0x2e8, 0x17e, 0x3eb, 0x014, 0x09c, 0x207, 0x31a, 0x133, 0x341,
0x0f8, 0x2bc, 0x1b5, 0x3a3, 0x05c, 0x152, 0x395, 0x06a, 0x18c, 0x3f9, 0x006, 0x07a, 0x1d1, 0x373, 0x0a4, 0x217, 0x2fe,
0x160, 0x3ad, 0x052, 0x13c, 0x357, 0x0d7, 0x270, 0x25c, 0x281, 0x235, 0x2c6, 0x1aa, 0x3bc, 0x043, 0x11d, 0x30d, 0x14a,
0x384, 0x08a, 0x1e7, 0x353, 0x0dd, 0x284, 0x22e, 0x2d8, 0x192, 0x3ec, 0x013, 0x099, 0x201, 0x323, 0x124, 0x321, 0x127,
0x32d, 0x114, 0x2fd, 0x161, 0x3b0, 0x04f, 0x135, 0x343, 0x0f4, 0x2b4, 0x1be, 0x392, 0x06d, 0x19d, 0x3db, 0x024, 0x0be,
0x244, 0x2b0, 0x1c2, 0x38a, 0x080, 0x1d9, 0x369, 0x0b6, 0x234, 0x2c8, 0x1a7, 0x3c8, 0x037, 0x0f1, 0x2ad, 0x1c6, 0x383,
0x08d, 0x1f2, 0x33b, 0x100, 0x2d1, 0x19b, 0x3de, 0x021, 0x0bb, 0x240, 0x2b6, 0x1bb, 0x399, 0x066, 0x17a, 0x3df, 0x020,
0x0b8, 0x23c, 0x2bd, 0x1b4, 0x3a5, 0x05a, 0x150, 0x390, 0x06f, 0x1a5, 0x3cb, 0x034, 0x0ea, 0x29d, 0x1ee, 0x348, 0x0ec,
0x2a3, 0x1e5, 0x356, 0x0d8, 0x271, 0x257, 0x289, 0x220, 0x2ec, 0x178, 0x3d9, 0x026, 0x0c2, 0x24b, 0x2a1, 0x1ea, 0x34d,
0x0e4, 0x291, 0x20c, 0x312, 0x141, 0x360, 0x0ca, 0x25a, 0x283, 0x230, 0x2d0, 0x19c, 0x3dd, 0x022, 0x0bc, 0x241, 0x2b3,
0x1bf, 0x391, 0x06e, 0x1a2, 0x3d1, 0x02e, 0x0d6, 0x26f, 0x25d, 0x27f, 0x237, 0x2c4, 0x1ac, 0x3ba, 0x045, 0x121, 0x318,
0x138, 0x34e, 0x0e3, 0x28f, 0x211, 0x30b, 0x14d, 0x38c, 0x073, 0x1c3, 0x387, 0x084, 0x1df, 0x362, 0x0c7, 0x255, 0x28e,
0x212, 0x309, 0x153, 0x396, 0x069, 0x18b, 0x3fa, 0x005, 0x079, 0x1d0, 0x374, 0x0a2, 0x215, 0x301, 0x15d, 0x3a9, 0x056,
0x147, 0x37a, 0x098, 0x200, 0x324, 0x11f, 0x316, 0x13a, 0x352, 0x0df, 0x288, 0x223, 0x2e9, 0x17d, 0x3e9, 0x016, 0x09e,
0x20d, 0x310, 0x144, 0x372, 0x0a5, 0x219, 0x2fa, 0x165, 0x3b8, 0x047, 0x123, 0x31e, 0x12d, 0x338, 0x107, 0x2e0, 0x188,
0x3fe, 0x001, 0x075, 0x1c9, 0x37e, 0x093, 0x1f9, 0x32f, 0x112, 0x2f9, 0x167, 0x3be, 0x041, 0x10b, 0x2e7, 0x17f, 0x3ed,
0x012, 0x097, 0x1ff, 0x325, 0x11e, 0x311, 0x142, 0x366, 0x0ba, 0x23f, 0x2b8, 0x1b9, 0x39b, 0x064, 0x176, 0x3d6, 0x029,
0x0c5, 0x250, 0x298, 0x1fc, 0x329, 0x119, 0x304, 0x15a, 0x3a6, 0x059, 0x14e, 0x38e, 0x071, 0x1ad, 0x3b6, 0x049, 0x128,
0x32e, 0x113, 0x2fc, 0x162, 0x3b2, 0x04d, 0x131, 0x33f, 0x0fa, 0x2c2, 0x1af, 0x3b3, 0x04c, 0x130, 0x33e, 0x0fb, 0x2c7,
0x1a9, 0x3bd, 0x042, 0x116, 0x300, 0x15e, 0x3aa, 0x055, 0x146, 0x378, 0x09b, 0x206, 0x31b, 0x132, 0x340, 0x0f9, 0x2be,
0x1b3, 0x3ac, 0x053, 0x140, 0x35d, 0x0ce, 0x262, 0x279, 0x247, 0x2a7, 0x1d7, 0x36b, 0x0ae, 0x226, 0x2e3, 0x185, 0x3f6,
0x009, 0x07d, 0x1d4, 0x36f, 0x0a8, 0x21e, 0x2f0, 0x172, 0x3ce, 0x031, 0x0de, 0x287, 0x228, 0x2df, 0x189, 0x3fd, 0x002,
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0x368, 0x0b7, 0x239, 0x2c1, 0x1b0, 0x3b1, 0x04e, 0x134, 0x342, 0x0f6, 0x2b7, 0x1ba, 0x39a, 0x065, 0x179, 0x3dc, 0x023,
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0x3c5, 0x03a, 0x0fd, 0x2cb, 0x1a3, 0x3d0, 0x02f, 0x0d9, 0x276, 0x24c, 0x29f, 0x1ec, 0x34a, 0x0e9, 0x29c, 0x1ef, 0x347,
0x0ee, 0x2a9, 0x1cf, 0x375, 0x0a1, 0x214, 0x305, 0x159, 0x3a4, 0x05b, 0x151, 0x394, 0x06b, 0x196, 0x3e6, 0x019, 0x0ab,
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0x229, 0x2dd, 0x18d, 0x3f8, 0x007, 0x07b, 0x1d2, 0x371, 0x0a6, 0x21b, 0x2f5, 0x16b, 0x3c2, 0x03d, 0x103, 0x2d4, 0x197,
0x3e3, 0x01c, 0x0b1, 0x22b, 0x2db, 0x18f, 0x3f5, 0x00a, 0x07e, 0x1d5, 0x36e, 0x0a9, 0x21f, 0x2ed, 0x177, 0x3d8, 0x027,
0x0c3, 0x24d, 0x29e, 0x1ed, 0x349, 0x0eb, 0x2a0, 0x1eb, 0x34b, 0x0e8, 0x29a, 0x1f4, 0x339, 0x106, 0x2de, 0x18a, 0x3fb,
0x004, 0x078, 0x1cd, 0x379, 0x09a, 0x203, 0x320, 0x129, 0x330, 0x111, 0x2f7, 0x169, 0x3c0, 0x03f, 0x105, 0x2d6, 0x194,
0x3e8, 0x017, 0x0a3, 0x216,
];

67
src/decrypt/xm.ts Normal file
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@ -0,0 +1,67 @@
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';
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',
};
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');
} else {
return await RawDecrypt(file, raw_filename, raw_ext, true);
}
}
let typeText = new TextDecoder().decode(oriData.slice(4, 8));
if (!FileTypeMap.hasOwnProperty(typeText)) {
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 audioData = oriData.slice(0x10);
let lenAudioData = audioData.length;
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') {
//todo:未知的编码方式
console.info(musicMeta.common);
musicMeta.common.album = '';
musicMeta.common.artist = '';
musicMeta.common.title = '';
}
const { title, artist } = GetMetaFromFile(
raw_filename,
musicMeta.common.title,
String(musicMeta.common.artists || musicMeta.common.artist || ""),
raw_filename.indexOf('_') === -1 ? '-' : '_',
);
return {
title,
artist,
ext,
mime,
album: musicMeta.common.album,
picture: GetCoverFromFile(musicMeta),
file: URL.createObjectURL(musicBlob),
blob: musicBlob,
rawExt: 'xm',
};
}

13
src/extension/popup.html Normal file
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
</head>
<body>
<script src="./popup.js"></script>
<a href="./index.html" target="_blank">
<button>立即使用</button>
</a>
</body>
</html>

2
src/extension/popup.js Normal file
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const bs = chrome || browser;
bs.tabs.create({ url: bs.runtime.getURL('./index.html') }, (tab) => console.log(tab));

56
src/main.ts Normal file
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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,
Progress,
Radio,
Row,
Table,
TableColumn,
Tooltip,
Upload,
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);
Vue.use(Footer);
Vue.use(Container);
Vue.use(Icon);
Vue.use(Row);
Vue.use(Col);
Vue.use(Upload);
Vue.use(Checkbox);
Vue.use(Radio);
Vue.use(Tooltip);
Vue.use(Progress);
Vue.prototype.$notify = Notification;
Vue.prototype.$confirm = MessageBox.confirm;
Vue.config.productionTip = false;
new Vue({
render: (h) => h(App),
}).$mount('#app');

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/* eslint-disable no-console */
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.');
},
registered() {
console.log('Service worker has been registered.');
},
cached() {
console.log('Content has been cached for offline use.');
},
updatefound() {
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.');
},
error(error) {
console.error('Error during service worker registration:', error);
},
});
}

256
src/scss/_dark-mode.scss Normal file
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/*
* 样式 - 暗黑模式
*/
@media (prefers-color-scheme: dark) {
#app{
color: $dark-text-info;
}
body{
background-color: $dark-bg;
}
// FORM
.el-radio{
&__label{
color: $dark-text-main;
}
&__input{
color: $dark-text-info;
.el-radio__inner{
border-color: $dark-border;
background-color: $dark-btn-bg;
}
}
&.is-checked{
.el-radio__inner{
background-color: $blue;
}
.el-radio__label{
font-weight: bold;
}
}
}
.el-checkbox.is-bordered{
border-color: $dark-border;
color: $dark-text-main;
background-color: $dark-btn-bg;
.el-checkbox__inner{
background-color: $dark-btn-bg-highlight;
border-color: $dark-border-highlight;
}
&:hover{
border-color: $dark-border-highlight;
.el-checkbox__inner{
background-color: $dark-btn-bg-highlight;
border-color: $dark-border-highlight;
}
.el-checkbox__label{
color: $dark-text-info;
}
}
&.is-checked{
background-color: $blue;
.el-checkbox__inner{
border-color: white;
}
.el-checkbox__label{
color: white;
font-weight: bold;
}
&:hover{
border-color: $blue;
.el-checkbox__inner{
background-color: white;
}
}
}
}
// BUTTON
.el-button{
background-color: $dark-btn-bg;
border-color: $dark-border;
color: $dark-text-main;
&:active{
transform: translateY(2px);
}
&--default{
&.is-plain {
background-color: $dark-btn-bg;
&:hover {
background-color: $blue;
border-color: $blue;
color: white;
}
}
&.is-circle {
background-color: $dark-blue;
border-color: $dark-blue;
&:hover {
background-color: $blue;
border-color: $blue;
color: white;
}
}
}
&--success{
&.is-plain {
background-color: $dark-btn-bg;
&:hover {
background-color: $green;
border-color: $green;
color: white;
}
}
&.is-circle {
background-color: $dark-green;
border-color: $dark-green;
&:hover {
background-color: $green;
border-color: $green;
color: white;
}
}
}
&--danger{
&.is-plain{
border-color: $dark-border;
background-color: $dark-btn-bg;
&:hover{
background-color: $red;
border-color: $red;
}
}
&.is-circle {
background-color: $dark-red;
border-color: $dark-red;
&:hover {
background-color: $red;
border-color: $red;
color: white;
}
}
}
}
// 文件拖放区
.el-upload__tip{
color: $dark-text-info;
}
.el-upload-dragger{
background-color: $dark-uploader-bg;
border-color: $dark-border;
.el-upload__text{
color: $dark-text-info;
}
&:hover{
background: $dark-uploader-bg-highlight;
border-color: $dark-border-highlight;
}
}
// TABLE
.el-table{
background-color: $dark-bg-td;
&:before{ // 去除表格末尾的横线
content: none;
}
&__header{
th{
border-bottom-color: $dark-border !important;
}
}
th.el-table__cell{
background-color: $dark-bg-th;
color: $dark-text-info;
}
td{
border-bottom-color: $dark-border !important;
}
tr{
background-color: $dark-bg-td;
color: $dark-text-main;
&:hover{
td{
background-color: $dark-bg-th !important;
}
}
}
}
// LINKS
a{
text-decoration: none;
color: darken($dark-color-link, 15%);
&:hover{
color: $dark-color-link;
}
}
// ALERT
.el-notification{
background-color: $dark-btn-bg-highlight;
border-color: $dark-border;
&__title{
color: white;
}
&__content{
color: $dark-text-info;
}
}
// DIALOG
.el-dialog{
background-color: $dark-dialog-bg;
.el-dialog__header{
.el-dialog__title{
color: $dark-text-main;
}
}
.el-dialog__body{
color: $dark-text-main;
.el-input{
.el-input__inner{
color: $dark-text-main;
background-color: $dark-btn-bg;
}
.el-input__suffix{
.el-input__suffix-inner{
}
}
.el-input__count{
.el-input__count-inner{
background-color: transparent;
}
}
}
}
.item-desc{
color: $dark-text-info;
}
}
// 自定义样式
// 首页弹窗提示信息的 更新信息 面板
.update-info{
border: 1px solid $dark-btn-bg !important;
.update-title{
color: $dark-text-main;
background-color: $dark-btn-bg !important;
}
.update-content{
color: $dark-text-info;
padding: 10px;
}
}
}

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$color-checkbox: $blue;
$color-border-el: #DCDFE6;
$btn-radius: 6px;
/* FORM */
// checkbox
.el-checkbox.is-bordered{
@include border-radius($btn-radius) ;
&:hover{
border-color: $color-checkbox;
.el-checkbox__label{
color: $color-checkbox;
}
}
.el-checkbox__input.is-focus{
.el-checkbox__inner{
border-color: $color-border-el;
}
}
&.is-checked{
background-color: $color-checkbox;
.el-checkbox__label{
color: white;
}
.el-checkbox__inner{
border-color: white;
background-color: white;
&:after{
border-color: $color-checkbox;
}
}
}
}
// el-button
.el-button{
@include border-radius($btn-radius) ;
}

18
src/scss/_gaps.scss Normal file
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/*
* 间隔工具集
*/
$gap: 5px;
@for $item from 0 through 8 {
.mt-#{$item} { margin-top : $gap * $item !important;}
.mb-#{$item} { margin-bottom : $gap * $item !important;}
.ml-#{$item} { margin-left : $gap * $item !important;}
.mr-#{$item} { margin-right : $gap * $item !important;}
.m-#{$item} { margin : $gap * $item !important;}
.pt-#{$item} { padding-top : $gap * $item !important;}
.pb-#{$item} { padding-bottom : $gap * $item !important;}
.pl-#{$item} { padding-left : $gap * $item !important;}
.pr-#{$item} { padding-right : $gap * $item !important;}
.p-#{$item} { padding : $gap * $item !important;}
}

38
src/scss/_normal.scss Normal file
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@ -0,0 +1,38 @@
body{
font-family: $font-family;
font-size: $fz-main;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
#app {
text-align: center;
color: $text-main;
padding-top: 30px;
}
#app-footer a {
padding-left: 0.2em;
padding-right: 0.2em;
}
#app-footer {
text-align: center;
font-size: small;
}
#app-control {
padding-top: 1em;
padding-bottom: 1em;
}
audio{
margin-bottom: 15px; // 播放控件与表格间隔
}
a{
color: darken($color-link, 15%);
&:hover{
color: $color-link;
}
}

72
src/scss/_utility.scss Normal file
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// box-shadow
@mixin box-shadow($value...){
-webkit-box-shadow: $value;
-moz-box-shadow: $value;
box-shadow: $value;
}
// border-radius
@mixin border-radius($corner...){
-webkit-border-radius: $corner;
-moz-border-radius: $corner;
border-radius: $corner;
}
@mixin clearfix(){
&:after{
content: '';
display: block;
clear: both;
visibility: hidden;
}
}
@mixin transform($value){
-webkit-transform: $value;
-moz-transform: $value;
-ms-transform: $value;
-o-transform: $value;
transform: $value;
}
@mixin transition($value...){
-webkit-transition: $value;
-moz-transition: $value;
-ms-transition: $value;
-o-transition: $value;
transition: $value;
}
@mixin animation($value){
animation: $value;
-webkit-animation: $value;
}
@mixin linear-gradient($direct, $colors){
background: linear-gradient($direct, $colors);
background: -webkit-linear-gradient($direct, $colors);
background: -moz-linear-gradient($direct, $colors);
}
@mixin backdrop-filter($value){
backdrop-filter: $value ;
-webkit-backdrop-filter: $value;
}
/*
Extension
*/
.unselectable {
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}
.btn-like{
&:active{
@include transform(translateY(2px))
}
}

35
src/scss/_variables.scss Normal file
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// COLORS
$blue : #409EFF;
$red : #F56C6C;
$green : #85ce61;
// TEXT
$text-main : #2C3E50;
$color-link: $blue;
$fz-main: 14px;
$fz-mini-title: 13px;
$fz-mini-content: 12px;
$font-family: "Helvetica Neue", Helvetica, "PingFang SC",
"Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
// DARK MODE
$dark-border : lighten(black, 25%);
$dark-border-highlight : lighten(black, 55%);
$dark-bg : lighten(black, 10%);
$dark-text-main : lighten(black, 90%);
$dark-text-info : lighten(black, 60%);
$dark-uploader-bg : lighten(black, 13%);
$dark-dialog-bg : lighten(black, 15%);
$dark-uploader-bg-highlight : lighten(black, 18%);
$dark-btn-bg : lighten(black, 20%);
$dark-btn-bg-highlight : lighten(black, 30%);
$dark-bg-th : lighten(black, 18%);
$dark-bg-td : lighten(black, 13%);
$dark-color-link : $green;
$dark-blue : darken(desaturate($blue, 40%), 30%);
$dark-red : darken(desaturate($red, 50%), 30%);
$dark-green : darken(desaturate($green, 30%), 30%);

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@import "variables";
@import "utility";
@import "gaps";
@import "element-ui-overrite";
@import "normal";
@import "dark-mode"; // dark-mode 放在 normal 后面以获得更高优先级
// 首页弹窗提示信息的 更新信息 面板
.update-info{
@include border-radius(8px);
overflow: hidden;
border: 1px solid $color-border-el;
margin: 10px 0;
.update-title{
font-size: $fz-mini-title;
padding: 5px 10px;
background-color: $color-border-el;
}
.update-content{
font-size: $fz-mini-content;
line-height: 1.5;
padding: 10px;
}
}

23
src/shims-browser-id3-writer.d.ts vendored Normal file
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declare module 'browser-id3-writer' {
export default class ID3Writer {
constructor(buffer: Buffer | ArrayBuffer);
setFrame(name: string, value: string | object | string[]);
addTag(): Uint8Array;
}
}
declare module 'metaflac-js' {
export default class Metaflac {
constructor(buffer: Buffer);
setTag(field: string);
removeTag(name: string);
importPictureFromBuffer(picture: Buffer);
save(): Buffer;
}
}

54
src/shims-fs.d.ts vendored Normal file
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export interface FileSystemGetFileOptions {
create?: boolean;
}
interface FileSystemCreateWritableOptions {
keepExistingData?: boolean;
}
interface FileSystemRemoveOptions {
recursive?: boolean;
}
interface FileSystemFileHandle {
getFile(): Promise<File>;
createWritable(options?: FileSystemCreateWritableOptions): Promise<FileSystemWritableFileStream>;
}
enum WriteCommandType {
write = 'write',
seek = 'seek',
truncate = 'truncate',
}
interface WriteParams {
type: WriteCommandType;
size?: number;
position?: number;
data: BufferSource | Blob | string;
}
type FileSystemWriteChunkType = BufferSource | Blob | string | WriteParams;
interface FileSystemWritableFileStream extends WritableStream {
write(data: FileSystemWriteChunkType): Promise<undefined>;
seek(position: number): Promise<undefined>;
truncate(size: number): Promise<undefined>;
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>;
}
declare global {
interface Window {
showDirectoryPicker?(): Promise<FileSystemDirectoryHandle>;
}
}

15
src/shims-tsx.d.ts vendored Normal file
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@ -0,0 +1,15 @@
import Vue, { VNode } from 'vue';
declare global {
namespace JSX {
// tslint:disable no-empty-interface
interface Element extends VNode {}
// tslint:disable no-empty-interface
interface ElementClass extends Vue {}
interface IntrinsicElements {
[elem: string]: any;
}
}
}

4
src/shims-vue.d.ts vendored Normal file
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@ -0,0 +1,4 @@
declare module '*.vue' {
import Vue from 'vue';
export default Vue;
}

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@ -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;
}

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

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

113
src/utils/api.ts Normal file
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export const IXAREA_API_ENDPOINT = 'https://um-api.ixarea.com';
export interface UpdateInfo {
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 interface CoverInfo {
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();
}
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}`;
}

156
src/utils/qm_meta.ts Normal file
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import { IAudioMetadata, parseBlob as metaParseBlob } from 'music-metadata-browser';
import iconv from 'iconv-lite';
import {
GetCoverFromFile,
GetImageFromURL,
GetMetaFromFile,
WriteMetaToFlac,
WriteMetaToMp3,
AudioMimeType,
split_regex,
} from '@/decrypt/utils';
import { getQMImageURLFromPMID, queryAlbumCover, querySongInfoById } from '@/utils/api';
interface MetaResult {
title: string;
artist: string;
album: string;
imgUrl: string;
blob: Blob;
}
const fromGBK = (text?: string) => iconv.decode(new Buffer(text || ''), 'gbk');
/**
*
* @param musicBlob
* @param name
* @param ext
* @param id ID<code>number</code>
* @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 = '';
if (!musicMeta.common.artists) {
musicMeta.common.artist = fromGBK(musicMeta.common.artist);
}
else {
musicMeta.common.artist = musicMeta.common.artists.map(fromGBK).join();
}
musicMeta.common.title = fromGBK(musicMeta.common.title);
musicMeta.common.album = fromGBK(musicMeta.common.album);
}
}
if (id && id !== '0') {
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(split_regex),
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;
}

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