Merge remote-tracking branch 'upstream/master'

# Conflicts:
#	src/App.vue
#	src/view/Home.vue
This commit is contained in:
KyleBing 2023-09-25 12:15:18 +08:00
commit eaca480700
43 changed files with 297 additions and 2658 deletions

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@ -4,11 +4,6 @@ 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:

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@ -0,0 +1,76 @@
name: 解码错误报告 (填表)
about: 遇到文件解码失败的问题请选择该项。
title: '[Bug/Crypto] '
labels:
- bug
- crypto
body:
- type: textarea
id: what-happened
attributes:
label: 错误描述
description: 请描述你所遇到的问题,以及你期待的行为。
placeholder: ''
value: ''
validations:
required: true
- type: dropdown
id: version
attributes:
label: Unlock Music 版本
description: |
能够重现错误的版本,版本号通常在页面底部。
如果不确定,请升级到最新版确认问题是否解决。
multiple: true
options:
- 1.10.5 (仓库最新)
- 1.10.3 (官方 DEMO)
- 其它(请在错误描述中指定)
validations:
required: true
- type: dropdown
id: browsers
attributes:
label: 产生错误的浏览器
multiple: true
options:
- 火狐 / Firefox
- Chrome
- Safari
- 其它基于 Chromium 的浏览器 (Edge、Brave、Opera 等)
- type: dropdown
id: music-platform
attributes:
label: 音乐平台
description: |
如果需要报告多个平台的问题,请每个平台提交一个新的 Issue。
请注意:播放器缓存文件不属于该项目支持的文件类型。
multiple: false
options:
- 其它 (请在错误描述指定)
- QQ 音乐
- Joox (QQ 音乐海外版)
- 虾米音乐
- 网易云音乐
- 酷我音乐
- 酷狗音乐
- 喜马拉雅
- 咪咕 3D
validations:
required: true
- type: textarea
id: logs
attributes:
label: 日志信息
description: 如果有请提供浏览器开发者控制台Console的错误日志
render: text
- type: checkboxes
id: terms
attributes:
label: 我已经阅读并确认下述内容
description: ''
options:
- label: 我已经检索过 Issue 列表,并确认这是一个为报告过的问题。
required: true
- label: 我有证据表明这是程序导致的问题(如不确认,可以通过 Telegram 讨论组 (https://t.me/unlock_music_chat) 进行讨论)
required: true

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@ -1,39 +1,40 @@
---
name: Bug报告
about: 报告Bug以帮助改进程序
title: ''
labels: bug
assignees: ''
name: "错误报告"
about: "报告 Bug 以帮助改进程序,非填表。"
title: "[BUG] "
labels:
- bug
---
* 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
- [x] 我有证据表明这是程序导致的问题(如不确认,可以通过 Telegram 讨论组 (https://t.me/unlock_music_chat) 进行讨论
**Bug描述**
## Bug描述
简要地复述你遇到的Bug
**复现方法**
## 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**
## 程序截图或浏览器开发者控制台Console的报错信息
如果可以请提供二者之一
**环境信息:**
## 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
- 网页版的地址(如果为非官方部署请注明)
注意:如果需要会员才能获取该资源,你可能也需要作为附件提交。
**附加信息**
## 附加信息
其他能够帮助确认问题的信息
如果有,请提供其他能够帮助确认问题的信息到下方:

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@ -1,26 +1,29 @@
---
name: 新功能
about: 对于程序新的想法或建议
title: ''
labels: enhancement
assignees: ''
name: "新功能"
about: "对于程序新的想法或建议"
title: "[新功能] "
labels:
- enhancement
---
- 请按照此模板填写,否则可能立即被关闭
<!-- ⚠ 请按照此模板填写,否则可能立即被关闭 -->
<!-- 提交前请使用【Preview】预览提交的更改 -->
**背景和说明**
## 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
<!-- 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**
## 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
- 如果你没有任何的实现思路,请通过 Telegram 讨论组 (https://t.me/unlock_music_chat) 进行讨论
**附加信息**
## 附加信息
更多你想要表达的内容
<!-- 更多你想要表达的内容 -->

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@ -50,8 +50,6 @@
### 自行构建
#### JS部分
- 环境要求
- nodejs (v16.x)
- npm
@ -59,6 +57,7 @@
1. 获取项目源代码后安装相关依赖:
```sh
npm install
npm ci
```
@ -76,15 +75,3 @@
```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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@ -6,10 +6,12 @@
"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"],
"permissions": [
"storage"
],
"offline_enabled": true,
"options_page": "./index.html",
"homepage_url": "https://github.com/ix64/unlock-music",
"homepage_url": "https://git.unlock-music.dev/um/web",
"browser_action": {
"default_popup": "./popup.html"
}

62
package-lock.json generated
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@ -1,18 +1,19 @@
{
"name": "unlock-music",
"version": "v1.10.3",
"version": "1.10.6",
"lockfileVersion": 2,
"requires": true,
"packages": {
"": {
"name": "unlock-music",
"version": "v1.10.3",
"version": "1.10.6",
"hasInstallScript": true,
"license": "MIT",
"dependencies": {
"@babel/preset-typescript": "^7.16.5",
"@jixun/kugou-crypto": "^1.0.3",
"@unlock-music/joox-crypto": "^0.0.1-R5",
"@xhacker/kgmwasm": "^1.0.0",
"@xhacker/qmcwasm": "^1.0.0",
"base64-js": "^1.5.1",
"browser-id3-writer": "^4.4.0",
"core-js": "^3.16.0",
@ -2986,22 +2987,6 @@
"regenerator-runtime": "^0.13.3"
}
},
"node_modules/@jixun/kugou-crypto": {
"version": "1.0.3",
"resolved": "https://registry.npmjs.org/@jixun/kugou-crypto/-/kugou-crypto-1.0.3.tgz",
"integrity": "sha512-ZiwSkpIAH8IkFcTfMjdQMpP/xco3iXEdYDEQo4wquYpSAln5RmSed3iBctnpoE6s3X1cxmBGhpCYW6v6vZfs+g==",
"dependencies": {
"commander": "^9.2.0"
}
},
"node_modules/@jixun/kugou-crypto/node_modules/commander": {
"version": "9.2.0",
"resolved": "https://registry.npmjs.org/commander/-/commander-9.2.0.tgz",
"integrity": "sha512-e2i4wANQiSXgnrBlIatyHtP1odfUp0BbV5Y5nEGbxtIrStkEOAAzCUirvLBNXHLr7kwLvJl6V+4V3XV9x7Wd9w==",
"engines": {
"node": "^12.20.0 || >=14"
}
},
"node_modules/@mrmlnc/readdir-enhanced": {
"version": "2.2.1",
"resolved": "https://registry.npmjs.org/@mrmlnc/readdir-enhanced/-/readdir-enhanced-2.2.1.tgz",
@ -4197,6 +4182,16 @@
"@xtuc/long": "4.2.2"
}
},
"node_modules/@xhacker/kgmwasm": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/@xhacker/kgmwasm/-/kgmwasm-1.0.0.tgz",
"integrity": "sha512-LnBuEVRJQVyJGJTb0cPZxZDu7Qi4PqDhJLRaRJfG6pSUeZuIoglzHiysyd4XfNHobNnLxG8v1IiNPS/uWwoG0A=="
},
"node_modules/@xhacker/qmcwasm": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/@xhacker/qmcwasm/-/qmcwasm-1.0.0.tgz",
"integrity": "sha512-oE6isNLmCDqIvxJV9KyDVlIzMISQzTj8o1ePWtQ+DhfXLI0hel/DwOIQ3icCikWnfwA/5SDs2hYw5BvrxdJ63g=="
},
"node_modules/@xtuc/ieee754": {
"version": "1.2.0",
"resolved": "https://registry.npmjs.org/@xtuc/ieee754/-/ieee754-1.2.0.tgz",
@ -5717,7 +5712,7 @@
},
"node_modules/caniuse-lite": {
"version": "1.0.30001434",
"resolved": "https://registry.npmmirror.com/caniuse-lite/-/caniuse-lite-1.0.30001434.tgz",
"resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001434.tgz",
"integrity": "sha512-aOBHrLmTQw//WFa2rcF1If9fa3ypkC1wzqqiKHgfdrXTWcU8C4gKVZT77eQAPWN1APys3+uQ0Df07rKauXGEYA=="
},
"node_modules/case-sensitive-paths-webpack-plugin": {
@ -23195,21 +23190,6 @@
"regenerator-runtime": "^0.13.3"
}
},
"@jixun/kugou-crypto": {
"version": "1.0.3",
"resolved": "https://registry.npmjs.org/@jixun/kugou-crypto/-/kugou-crypto-1.0.3.tgz",
"integrity": "sha512-ZiwSkpIAH8IkFcTfMjdQMpP/xco3iXEdYDEQo4wquYpSAln5RmSed3iBctnpoE6s3X1cxmBGhpCYW6v6vZfs+g==",
"requires": {
"commander": "^9.2.0"
},
"dependencies": {
"commander": {
"version": "9.2.0",
"resolved": "https://registry.npmjs.org/commander/-/commander-9.2.0.tgz",
"integrity": "sha512-e2i4wANQiSXgnrBlIatyHtP1odfUp0BbV5Y5nEGbxtIrStkEOAAzCUirvLBNXHLr7kwLvJl6V+4V3XV9x7Wd9w=="
}
}
},
"@mrmlnc/readdir-enhanced": {
"version": "2.2.1",
"resolved": "https://registry.npmjs.org/@mrmlnc/readdir-enhanced/-/readdir-enhanced-2.2.1.tgz",
@ -24256,6 +24236,16 @@
"@xtuc/long": "4.2.2"
}
},
"@xhacker/kgmwasm": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/@xhacker/kgmwasm/-/kgmwasm-1.0.0.tgz",
"integrity": "sha512-LnBuEVRJQVyJGJTb0cPZxZDu7Qi4PqDhJLRaRJfG6pSUeZuIoglzHiysyd4XfNHobNnLxG8v1IiNPS/uWwoG0A=="
},
"@xhacker/qmcwasm": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/@xhacker/qmcwasm/-/qmcwasm-1.0.0.tgz",
"integrity": "sha512-oE6isNLmCDqIvxJV9KyDVlIzMISQzTj8o1ePWtQ+DhfXLI0hel/DwOIQ3icCikWnfwA/5SDs2hYw5BvrxdJ63g=="
},
"@xtuc/ieee754": {
"version": "1.2.0",
"resolved": "https://registry.npmjs.org/@xtuc/ieee754/-/ieee754-1.2.0.tgz",
@ -25487,7 +25477,7 @@
},
"caniuse-lite": {
"version": "1.0.30001434",
"resolved": "https://registry.npmmirror.com/caniuse-lite/-/caniuse-lite-1.0.30001434.tgz",
"resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001434.tgz",
"integrity": "sha512-aOBHrLmTQw//WFa2rcF1If9fa3ypkC1wzqqiKHgfdrXTWcU8C4gKVZT77eQAPWN1APys3+uQ0Df07rKauXGEYA=="
},
"case-sensitive-paths-webpack-plugin": {

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@ -1,13 +1,13 @@
{
"name": "unlock-music",
"version": "1.10.3",
"version": "1.10.6",
"ext_build": 0,
"updateInfo": "完善音乐标签编辑功能,支持编辑更多标签",
"updateInfo": "修正文件过小的情况下酷狗 / QQ解密错误问题",
"license": "MIT",
"description": "Unlock encrypted music file in browser.",
"repository": {
"type": "git",
"url": "https://github.com/ix64/unlock-music"
"url": "https://git.unlock-music.dev/um/web"
},
"private": true,
"scripts": {
@ -21,8 +21,9 @@
},
"dependencies": {
"@babel/preset-typescript": "^7.16.5",
"@jixun/kugou-crypto": "^1.0.3",
"@unlock-music/joox-crypto": "^0.0.1-R5",
"@xhacker/kgmwasm": "^1.0.0",
"@xhacker/qmcwasm": "^1.0.0",
"base64-js": "^1.5.1",
"browser-id3-writer": "^4.4.0",
"core-js": "^3.16.0",

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@ -1,39 +1,89 @@
<!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">
<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>
<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" />
<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, 0.88);
}
@media (prefers-color-scheme: dark) {
#loader-mask {
color: #fff;
background-color: rgba(0, 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>
</head>
<div id="loader-mask">
<div id="loader"></div>
<noscript>
<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>
</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>
</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>
| <a href="https://git.unlock-music.dev/um/web/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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@ -1,13 +0,0 @@
#!/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

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@ -1,23 +1,23 @@
<template>
<el-container id="app">
<el-main class="p-0">
<el-main>
<Home />
</el-main>
<el-footer id="app-footer">
<div>
<a href="https://github.com/ix64/unlock-music" target="_blank">音乐解锁</a>({{ version }})
<a href="https://git.unlock-music.dev/um/web" 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>
<a href="https://git.unlock-music.dev/um/web/wiki/使用提示" target="_blank">使用提示</a>
</div>
<div>
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>
<a href="https://git.unlock-music.dev/um/web/src/branch/master/README.md" target="_blank">更多</a>
</div>
<div>
<!--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>
<a href="https://git.unlock-music.dev/um/web/src/branch/master/LICENSE" target="_blank">MIT许可协议</a>
开放源代码
</div>
</el-footer>
@ -40,13 +40,11 @@ export default {
},
data() {
return {
version: config.version
version: config.version,
};
},
created() {
this.$nextTick(() => {
this.finishLoad()
});
this.$nextTick(() => this.finishLoad());
},
methods: {
async finishLoad() {
@ -79,7 +77,7 @@ export default {
<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>
<a target="_blank" href="https://git.unlock-music.dev/um/web/wiki/使用提示">使用提示</a>
</div>`,
dangerouslyUseHTMLString: true,
duration: 10000,

View File

@ -1,65 +0,0 @@
# 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}
)

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@ -1,20 +0,0 @@
// 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;
}

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@ -1,18 +0,0 @@
// 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());
}

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@ -1,9 +0,0 @@
# 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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@ -1,41 +0,0 @@
#!/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

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@ -1,112 +0,0 @@
#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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@ -1,65 +0,0 @@
# 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}
)

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@ -1,57 +0,0 @@
// 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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@ -1,23 +0,0 @@
// 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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@ -1,9 +0,0 @@
# 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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@ -1,289 +0,0 @@
#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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@ -1,207 +0,0 @@
//
// 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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@ -1,41 +0,0 @@
#!/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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@ -1,230 +0,0 @@
#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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@ -1,290 +0,0 @@
#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();
}
};

View File

@ -1,217 +0,0 @@
#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;
}
}

View File

@ -33,7 +33,9 @@ form >>> input {
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">
<a
href="https://git.unlock-music.dev/um/joox-crypto/wiki/%E8%8E%B7%E5%8F%96%E8%AE%BE%E5%A4%87-UUID#%E5%89%8D%E8%A8%80"
>
获取设备 UUID · unlock-music/joox-crypto Wiki</a
>
</p>

View File

@ -22,7 +22,7 @@ describe('decrypt/joox', () => {
album: 'unused',
blob: blob,
artist: 'unused',
imgUrl: 'https://github.com/unlock-music',
imgUrl: 'https://example.unlock-music.dev/',
};
});

View File

@ -9,7 +9,6 @@ import {
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 = [
@ -29,33 +28,14 @@ export async function Decrypt(file: File, raw_filename: string, raw_ext: string)
} else {
if (!BytesHasPrefix(new Uint8Array(oriData), KgmHeader)) throw Error('Not a valid kgm(a) file!');
}
let musicDecoded: Uint8Array | undefined;
let musicDecoded = new Uint8Array();
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);
throw new Error(kgmDecrypted.error || '(unknown error)');
}
}

View File

@ -1,7 +1,8 @@
import KgmCryptoModule from '@/KgmWasm/KgmWasmBundle';
import { KgmCrypto } from '@xhacker/kgmwasm/KgmWasmBundle';
import KgmCryptoModule from '@xhacker/kgmwasm/KgmWasmBundle';
import { MergeUint8Array } from '@/utils/MergeUint8Array';
// 每次处理 2M 的数据
// 每次可以处理 2M 的数据
const DECRYPTION_BUF_SIZE = 2 *1024 * 1024;
export interface KGMDecryptionResult {
@ -20,27 +21,27 @@ export async function DecryptKgmWasm(kgmBlob: ArrayBuffer, ext: string): Promise
const result: KGMDecryptionResult = { success: false, data: new Uint8Array(), error: '' };
// 初始化模组
let KgmCrypto: any;
let KgmCryptoObj: KgmCrypto;
try {
KgmCrypto = await KgmCryptoModule();
KgmCryptoObj = await KgmCryptoModule();
} catch (err: any) {
result.error = err?.message || 'wasm 加载失败';
return result;
}
if (!KgmCrypto) {
if (!KgmCryptoObj) {
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);
const pKgmBuf = KgmCryptoObj._malloc(DECRYPTION_BUF_SIZE);
const preDecDataSize = Math.min(DECRYPTION_BUF_SIZE, kgmBlob.byteLength); // 初始化缓冲区大小
KgmCryptoObj.writeArrayToMemory(kgmBuf.slice(0, preDecDataSize), pKgmBuf);
// 进行解密初始化
const headerSize = KgmCrypto.preDec(pQmcBuf, DECRYPTION_BUF_SIZE, ext);
console.log(headerSize);
const headerSize = KgmCryptoObj.preDec(pKgmBuf, preDecDataSize, ext);
kgmBuf = kgmBuf.slice(headerSize);
const decryptedParts = [];
@ -51,14 +52,14 @@ export async function DecryptKgmWasm(kgmBlob: ArrayBuffer, ext: string): Promise
// 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));
KgmCryptoObj.writeArrayToMemory(blockData, pKgmBuf);
KgmCryptoObj.decBlob(pKgmBuf, blockSize, offset);
decryptedParts.push(KgmCryptoObj.HEAPU8.slice(pKgmBuf, pKgmBuf + blockSize));
offset += blockSize;
bytesToDecrypt -= blockSize;
}
KgmCrypto._free(pQmcBuf);
KgmCryptoObj._free(pKgmBuf);
result.data = MergeUint8Array(decryptedParts);
result.success = true;

View File

@ -139,7 +139,7 @@ class NcmDecrypt {
} else {
result = JSON.parse(plainText.slice(labelIndex + 1));
}
if (!!result.albumPic) {
if (result.albumPic) {
result.albumPic = result.albumPic.replace('http://', 'https://') + '?param=500y500';
}
return result;
@ -160,11 +160,20 @@ class NcmDecrypt {
// build artists
let artists: string[] = [];
if (!!this.oriMeta.artist) {
this.oriMeta.artist.forEach((arr) => artists.push(<string>arr[0]));
if (typeof this.oriMeta.artist === 'string') {
// v3.0: artist 现在可能是字符串了?
artists.push(this.oriMeta.artist);
} else if (Array.isArray(this.oriMeta.artist)) {
this.oriMeta.artist.forEach((artist) => {
if (typeof artist === 'string') {
artists.push(artist);
} else if (Array.isArray(artist) && artist[0] && typeof artist[0] === 'string') {
artists.push(artist[0]);
}
});
}
if (artists.length === 0 && !!info.artist) {
if (artists.length === 0 && info.artist) {
artists = info.artist
.split(',')
.map((val) => val.trim())
@ -180,7 +189,7 @@ class NcmDecrypt {
this.image.buffer = await img.getBufferAsync('image/jpeg');
}
} catch (e) {
console.log('get cover image failed', e);
console.log('fetch cover image failed', e);
}
this.newMeta = { title: info.title, artists, album: this.oriMeta.album, picture: this.image?.buffer };
@ -226,12 +235,14 @@ class NcmDecrypt {
this.audio = this._getAudio(keyBox);
this.format = this.oriMeta.format || SniffAudioExt(this.audio);
this.mime = AudioMimeType[this.format];
await this._buildMeta();
try {
await this._buildMeta();
await this._writeMeta();
} catch (e) {
console.warn('write meta data failed', e);
console.warn('build/write meta failed, skip.', e);
}
return this.gatherResult();
}
}

View File

@ -1,29 +0,0 @@
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();
}
});

View File

@ -1,8 +1,6 @@
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';
@ -18,7 +16,7 @@ export const HandlerMap: { [key: string]: Handler } = {
mgg1: { ext: 'ogg', version: 2 },
mflac: { ext: 'flac', version: 2 },
mflac0: { ext: 'flac', version: 2 },
mmp4: { ext: 'mmp4', version: 2 },
mmp4: { ext: 'mp4', version: 2 },
// qmcflac / qmcogg:
// 有可能是 v2 加密但混用同一个后缀名。
@ -52,12 +50,10 @@ export async function Decrypt(file: Blob, raw_filename: string, raw_ext: string)
let { version } = handler;
const fileBuffer = await GetArrayBuffer(file);
let musicDecoded: Uint8Array | undefined;
let musicDecoded = new Uint8Array();
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) {
@ -65,18 +61,10 @@ export async function Decrypt(file: Blob, raw_filename: string, raw_ext: string)
musicID = v2Decrypted.songId;
console.log('qmc wasm decoder suceeded');
} else {
console.warn('QmcWasm failed with error %s', v2Decrypted.error || '(unknown error)');
throw new Error(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];
@ -98,88 +86,3 @@ export async function Decrypt(file: Blob, raw_filename: string, raw_ext: string)
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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@ -1,117 +0,0 @@
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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@ -1,199 +0,0 @@
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;
}
}

View File

@ -1,26 +0,0 @@
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);
}
});

View File

@ -1,127 +0,0 @@
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;
}

View File

@ -1,7 +1,8 @@
import QmcCryptoModule from '@/QmcWasm/QmcWasmBundle';
import { QmcCrypto } from '@xhacker/qmcwasm/QmcWasmBundle';
import QmcCryptoModule from '@xhacker/qmcwasm/QmcWasmBundle';
import { MergeUint8Array } from '@/utils/MergeUint8Array';
// 每次处理 2M 的数据
// 每次可以处理 2M 的数据
const DECRYPTION_BUF_SIZE = 2 *1024 * 1024;
export interface QMCDecryptionResult {
@ -21,32 +22,33 @@ export async function DecryptQmcWasm(qmcBlob: ArrayBuffer, ext: string): Promise
const result: QMCDecryptionResult = { success: false, data: new Uint8Array(), songId: 0, error: '' };
// 初始化模组
let QmcCrypto: any;
let QmcCryptoObj: QmcCrypto;
try {
QmcCrypto = await QmcCryptoModule();
QmcCryptoObj = await QmcCryptoModule();
} catch (err: any) {
result.error = err?.message || 'wasm 加载失败';
return result;
}
if (!QmcCrypto) {
if (!QmcCryptoObj) {
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);
const pQmcBuf = QmcCryptoObj._malloc(DECRYPTION_BUF_SIZE);
const preDecDataSize = Math.min(DECRYPTION_BUF_SIZE, qmcBlob.byteLength); // 初始化缓冲区大小
QmcCryptoObj.writeArrayToMemory(qmcBuf.slice(-preDecDataSize), pQmcBuf);
// 进行解密初始化
ext = '.' + ext;
const tailSize = QmcCrypto.preDec(pQmcBuf, DECRYPTION_BUF_SIZE, ext);
const tailSize = QmcCryptoObj.preDec(pQmcBuf, preDecDataSize, ext);
if (tailSize == -1) {
result.error = QmcCrypto.getError();
result.error = QmcCryptoObj.getErr();
return result;
} else {
result.songId = QmcCrypto.getSongId();
result.songId = QmcCryptoObj.getSongId();
result.songId = result.songId == "0" ? 0 : result.songId;
}
@ -58,13 +60,13 @@ export async function DecryptQmcWasm(qmcBlob: ArrayBuffer, ext: string): Promise
// 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)));
QmcCryptoObj.writeArrayToMemory(blockData, pQmcBuf);
decryptedParts.push(QmcCryptoObj.HEAPU8.slice(pQmcBuf, pQmcBuf + QmcCryptoObj.decBlob(pQmcBuf, blockSize, offset)));
offset += blockSize;
bytesToDecrypt -= blockSize;
}
QmcCrypto._free(pQmcBuf);
QmcCryptoObj._free(pQmcBuf);
result.data = MergeUint8Array(decryptedParts);
result.success = true;

View File

@ -17,7 +17,7 @@ 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;
let musicDecoded = new Uint8Array();
if (globalThis.WebAssembly) {
console.log('qmc: using wasm decoder');
@ -27,19 +27,10 @@ export async function Decrypt(file: Blob, raw_filename: string, raw_ext: string)
musicDecoded = qmcDecrypted.data;
console.log('qmc wasm decoder suceeded');
} else {
console.warn('QmcWasm failed with error %s', qmcDecrypted.error || '(unknown error)');
throw new Error(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;

View File

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

View File

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

View File

@ -18,7 +18,9 @@
:album="editing_data.album"
:albumartist="editing_data.albumartist"
:genre="editing_data.genre"
@cancel="showEditDialog = false" @ok="handleEdit"></edit-dialog>
@cancel="showEditDialog = false"
@ok="handleEdit"
></edit-dialog>
<config-dialog :show="showConfigDialog" @done="showConfigDialog = false"></config-dialog>
<el-tooltip class="item" effect="dark" placement="top">
<div slot="content">
@ -37,7 +39,7 @@
开启后解锁结果将不会存留于浏览器中防止内存不足
</span>
</div>
<el-checkbox v-model="instant_save" type="success" border class="ml-2">立即保存</el-checkbox>
<el-checkbox v-model="instant_save" type="success" border class="ml-2">立即保存</el-checkbox>
</el-tooltip>
</el-row>
</div>
@ -76,7 +78,7 @@ export default {
return {
showConfigDialog: false,
showEditDialog: false,
editing_data: { picture: '', title: '', artist: '', album: '', albumartist: '', genre: '', },
editing_data: { picture: '', title: '', artist: '', album: '', albumartist: '', genre: '' },
tableData: [],
playing_url: '',
playing_auto: false,
@ -117,7 +119,7 @@ export default {
errInfo +
'' +
filename +
',参考<a target="_blank" href="https://github.com/ix64/unlock-music/wiki/使用提示">使用提示</a>',
',参考<a target="_blank" href="https://git.unlock-music.dev/um/web/wiki/使用提示">使用提示</a>',
dangerouslyUseHTMLString: true,
duration: 6000,
});
@ -170,12 +172,13 @@ export default {
console.warn('获取图像失败', this.editing_data.picture);
}
}
const newMeta = { picture: imageInfo?.buffer,
const newMeta = {
picture: imageInfo?.buffer,
title: data.title,
artists: data.artist.split(split_regex),
album: data.album,
albumartist: data.albumartist,
genre: data.genre.split(split_regex)
genre: data.genre.split(split_regex),
};
const buffer = Buffer.from(await this.editing_data.blob.arrayBuffer());
const mime = AudioMimeType[this.editing_data.ext] || AudioMimeType.mp3;