feat: add unlock gray song function api

packages/unblock/.dockerignore

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+.git
+.npmignore
+.gitignore
+.dockerignore
+
+LICENSE
+*.md
+
+node_modules
+npm-debug.log
+
+Dockerfile*
+*.yml
+
+src/browser/
+ca.*
+*.worker.js

packages/unblock/.gitignore

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+# IDE
+.vscode
+.idea
+
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# TypeScript v1 declaration files
+typings/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+
+# next.js build output
+.next
+
+# pkg dist directory
+dist/
+
+# es6 transformation
+src/browser/provider
+src/browser/cache.js

packages/unblock/.npmignore

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+.npmignore
+.gitignore
+.dockerignore
+
+Dockerfile*
+*.yml
+
+src/browser/
+ca.*
+*.worker.js

packages/unblock/Dockerfile

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+FROM alpine
+RUN apk add --update nodejs npm --repository=http://dl-cdn.alpinelinux.org/alpine/latest-stable/main/
+
+ENV NODE_ENV production
+
+WORKDIR /usr/src/app
+COPY package*.json ./
+RUN npm install --production
+COPY . .
+
+EXPOSE 8080 8081
+
+ENTRYPOINT ["node", "app.js"]

packages/unblock/LICENSE

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+MIT License
+
+Copyright (c) 2018 Nzix
+
+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.

packages/unblock/README.md

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+<img src="https://user-images.githubusercontent.com/26399680/47980314-0e3f1700-e102-11e8-8857-e3436ecc8beb.png" alt="logo" width="140" height="140" align="right">
+
+# UnblockNeteaseMusic
+
+解锁网易云音乐客户端变灰歌曲
+
+## 特性
+
+- 使用 QQ / 虾米 / 百度 / 酷狗 / 酷我 / 咪咕 / JOOX 音源替换变灰歌曲链接 (默认仅启用一、五、六)
+- 为请求增加 `X-Real-IP` 参数解锁海外限制，支持指定网易云服务器 IP，支持设置上游 HTTP / HTTPS 代理
+- 完整的流量代理功能 (HTTP / HTTPS)，可直接作为系统代理 (同时支持 PAC)
+
+## 运行
+
+使用 npx
+
+```
+$ npx @nondanee/unblockneteasemusic
+```
+
+或使用 Docker
+
+```
+$ docker run nondanee/unblockneteasemusic
+```
+
+```
+$ docker-compose up
+```
+
+### 配置参数
+
+```
+$ unblockneteasemusic -h
+usage: unblockneteasemusic [-v] [-p port] [-a address] [-u url] [-f host]
+                           [-o source [source ...]] [-t token] [-e url] [-s]
+                           [-h]
+
+optional arguments:
+  -v, --version                   output the version number
+  -p port, --port port            specify server port
+  -a address, --address address   specify server host
+  -u url, --proxy-url url         request through upstream proxy
+  -f host, --force-host host      force the netease server ip
+  -o source [source ...], --match-order source [source ...]
+                                  set priority of sources
+  -t token, --token token         set up proxy authentication
+  -e url, --endpoint url          replace virtual endpoint with public host
+  -s, --strict                    enable proxy limitation
+  -h, --help                      output usage information
+```
+
+## 使用
+
+**警告：本项目不提供线上 demo，请不要轻易信任使用他人提供的公开代理服务，以免发生安全问题**
+
+**若将服务部署到公网，强烈建议使用严格模式 (此模式下仅放行网易云音乐所属域名的请求) `-s`  限制代理范围 (需使用 PAC 或 hosts)，~~或启用 Proxy Authentication `-t <name>:<password>` 设置代理用户名密码~~ (目前密码认证在 Windows 客户端设置和 macOS 系统设置都无法生效，请不要使用)，以防代理被他人滥用**
+
+支持 Windows 客户端，UWP 客户端，Android 客户端，Linux 客户端 (1.2 版本以上需要自签证书 MITM，启动客户端需要增加 `--ignore-certificate-errors` 参数)，macOS 客户端 (726 版本以上需要自签证书)，iOS 客户端 (配置 https endpoint 或使用自签证书) 和网页版 (需要自签证书，需要脚本配合)
+
+目前除 UWP 外其它客户端均优先请求 HTTPS 接口，默认配置下本代理对网易云所有 HTTPS API 连接返回空数据，促使客户端降级使用 HTTP 接口 (新版 Linux 客户端和 macOS 客户端已无法降级)
+
+因 UWP 应用存在网络隔离，限制流量发送到本机，若使用的代理在 localhost，或修改的 hosts 指向 localhost，需为 "网易云音乐 UWP" 手动开启 loopback 才能使用，请以**管理员身份**执行命令
+
+```powershell
+checknetisolation loopbackexempt -a -n="1F8B0F94.122165AE053F_j2p0p5q0044a6"
+```
+
+### 方法 1. 修改 hosts
+
+向 hosts 文件添加两条规则
+
+```
+<Server IP> music.163.com
+<Server IP> interface.music.163.com
+```
+
+> 使用此方法必须监听 80 端口 `-p 80` 
+>
+> **若在本机运行程序**，请指定网易云服务器 IP `-f xxx.xxx.xxx.xxx` (可在修改 hosts 前通过 `ping music.163.com` 获得) **或** 使用代理 `-u http(s)://xxx.xxx.xxx.xxx:xxx`，以防请求死循环
+>
+> **Android 客户端下修改 hosts 无法直接使用**，原因和解决方法详见[云音乐安卓又搞事啦](https://jixun.moe/post/netease-android-hosts-bypass/)，[安卓免 root 绕过网易云音乐 IP 限制](https://jixun.moe/post/android-block-netease-without-root/)
+
+### 方法 2. 设置代理
+
+PAC 自动代理脚本地址 `http://<Server Name:PORT>/proxy.pac`
+
+全局代理地址填写服务器地址和端口号即可
+
+| 平台    | 基础设置 |
+| :------ | :------------------------------- |
+| Windows | 设置 > 工具 > 自定义代理 (客户端内) |
+| UWP     | Windows 设置 > 网络和 Internet > 代理 |
+| Linux   | 系统设置 > 网络 > 网络代理 |
+| macOS   | 系统偏好设置 > 网络 > 高级 > 代理 |
+| Android | WLAN > 修改网络 > 高级选项 > 代理 |
+| iOS     | 无线局域网 > HTTP 代理 > 配置代理 |
+
+> 代理工具和方法有很多请自行探索，欢迎在 issues 讨论
+
+### ✳方法 3. 调用接口
+
+作为依赖库使用
+
+```
+$ npm install @nondanee/unblockneteasemusic
+```
+
+```javascript
+const match = require('@nondanee/unblockneteasemusic')
+
+/** 
+ * Set proxy or hosts if needed
+ */
+global.proxy = require('url').parse('http://127.0.0.1:1080')
+global.hosts = {'i.y.qq.com': '59.37.96.220'}
+
+/**
+ * Find matching song from other platforms
+ * @param {Number} id netease song id
+ * @param {Array<String>||undefined} source support qq, xiami, baidu, kugou, kuwo, migu, joox
+ * @return {Promise<Object>}
+ */
+match(418602084, ['qq', 'kuwo', 'migu']).then(console.log)
+```
+
+## 效果
+
+#### Windows 客户端
+
+<img src="https://user-images.githubusercontent.com/26399680/60316017-87de8a80-999b-11e9-9381-16d40efbe7f6.png" width="100%">
+
+#### UWP 客户端
+
+<img src="https://user-images.githubusercontent.com/26399680/52215123-5a028780-28ce-11e9-8491-08c4c5dac3b4.png" width="100%">
+
+#### Linux 客户端
+
+<img src="https://user-images.githubusercontent.com/26399680/60316169-18b56600-999c-11e9-8ae5-5cd168b0edae.png" width="100%">
+
+#### macOS 客户端
+
+<img src="https://user-images.githubusercontent.com/26399680/52196035-51418f80-2895-11e9-8f33-78a631cdf151.png" width="100%">
+
+#### Android 客户端
+
+<img src="https://user-images.githubusercontent.com/26399680/57972549-eabd2900-79ce-11e9-8fef-95cb60906298.png" width="50%">
+
+#### iOS 客户端
+
+<img src="https://user-images.githubusercontent.com/26399680/57972440-f90a4580-79cc-11e9-8dbf-6150ee299b9c.jpg" width="50%">
+
+## 致谢
+
+感谢大佬们为逆向 eapi 所做的努力
+
+使用的其它平台音源 API 出自
+
+[trazyn/ieaseMusic](https://github.com/trazyn/ieaseMusic)
+
+[listen1/listen1_chrome_extension](https://github.com/listen1/listen1_chrome_extension)
+
+向所有同类项目致敬
+
+[EraserKing/CloudMusicGear](https://github.com/EraserKing/CloudMusicGear)
+
+[EraserKing/Unblock163MusicClient](https://github.com/EraserKing/Unblock163MusicClient)
+
+[ITJesse/UnblockNeteaseMusic](https://github.com/ITJesse/UnblockNeteaseMusic/)
+
+[bin456789/Unblock163MusicClient-Xposed](https://github.com/bin456789/Unblock163MusicClient-Xposed)
+
+[YiuChoi/Unlock163Music](https://github.com/YiuChoi/Unlock163Music)
+
+[yi-ji/NeteaseMusicAbroad](https://github.com/yi-ji/NeteaseMusicAbroad)
+
+[stomakun/NeteaseReverseLadder](https://github.com/stomakun/NeteaseReverseLadder/)
+
+[fengjueming/unblock-NetEaseMusic](https://github.com/fengjueming/unblock-NetEaseMusic)
+
+[acgotaku/NetEaseMusicWorld](https://github.com/acgotaku/NetEaseMusicWorld)
+
+[mengskysama/163-Cloud-Music-Unlock](https://github.com/mengskysama/163-Cloud-Music-Unlock)
+
+[azureplus/163-music-unlock](https://github.com/azureplus/163-music-unlock)
+
+[typcn/163music-mac-client-unlock](https://github.com/typcn/163music-mac-client-unlock)
+
+## 许可
+
+The MIT License

packages/unblock/app.js

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+#!/usr/bin/env node
+require('./src/app')

packages/unblock/bridge.js

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+#!/usr/bin/env node
+require('./src/bridge')

packages/unblock/ca.crt

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+-----END CERTIFICATE-----

packages/unblock/docker-compose.yml

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+version: '3'
+
+services:
+  unblockneteasemusic:
+    image: nondanee/unblockneteasemusic
+    environment:
+      NODE_ENV: production
+    ports:
+      - 8080:8080

packages/unblock/endpoint.worker.js

@@ -0,0 +1,20 @@
+addEventListener('fetch', event => {
+  event.respondWith(handleRequest(event.request))
+})
+
+const pattern = /^\/package\/([0-9a-zA-Z_\-=]+)\/(\w+\.\w+)$/
+
+const handleRequest = async request => {
+  const notFound = new Response(null, { status: 404 })
+  const path = new URL(request.url).pathname
+  const [matched, base64Url, fileName] = pattern.exec(path || '') || []
+  if (!matched) return notFound
+  let url = base64Url.replace(/-/g, '+').replace(/_/g, '/')
+  try { url = new URL(atob(url)) } catch(_) { url = null }
+  if (!url) return notFound
+  const headers = new Headers(request.headers)
+  headers.set('host', url.host)
+  headers.delete('cookie')
+  const { method, body } = request
+  return fetch(url, { method, headers, body })
+}