init

.gitignore

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+node_modules

Dockerfile

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+#制定node镜像的版本
+FROM node:8.9-alpine
+#声明作者
+MAINTAINER robin
+#移动当前目录下面的文件到app目录下
+ADD . /app/
+#进入到app目录下面，类似cd
+WORKDIR /app
+#安装依赖
+RUN npm install
+#程序启动脚本
+CMD ["npm", "start"]

main.js

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+const Koa = require('koa');
+var router = require("koa-router");
+const moment = require('moment');
+const crypto = require('crypto');
+
+const app = new Koa();
+const _ = new router()
+
+_.get('/qingting/', manageRedirect)
+_.get('/qingting/:channel_id', manageRedirect)
+
+async function manageRedirect(ctx) {
+  let channel_id = ctx.params.channel_id || 388
+  let url = getUrl(channel_id)
+  console.log(url)
+  ctx.response.redirect(url);
+}
+
+function getUrl(channel_id) {
+  const channel_path = `/live/${channel_id}/64k.mp3`
+  const encode_channel_path = encodeURIComponent(channel_path)
+  const time = encodeURIComponent(moment().add(1, "hours").unix().toString(16))
+  const app_id = encodeURIComponent('web')
+  var sign_path = "app_id=".concat(app_id, "&path=").concat(encode_channel_path, "&ts=").concat(time)
+  var sign = crypto.createHmac("md5", "Lwrpu$K5oP").update(sign_path).digest("hex").toString();
+  var path = `https://lhttp.qingting.fm${channel_path}?app_id=${app_id}&ts=${time}&sign=${sign}`
+  return path
+}
+
+app.use(_.routes())
+app.listen(80);

package.json

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+{
+  "name": "qingting",
+  "version": "1.0.0",
+  "description": "redirect to qingting",
+  "main": "main.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "start": "node main.js"
+  },
+  "author": "RainSun",
+  "license": "ISC",
+  "dependencies": {
+    "crypto": "^1.0.1",
+    "koa": "^2.0.0",
+    "koa-router": "^7.4.0",
+    "moment": "^2.27.0"
+  }
+}