feat: update 3dm download rss (#496)

.gitignore

@@ -11,3 +11,4 @@ docs/.vuepress/dist
 config/app.json
 config/config.js
 
+yarn-error.log

README.md

@@ -160,6 +160,7 @@ RSSHub 是一个轻量、易于扩展的 RSS 生成器，可以给任何奇奇
     -   新闻中心
     -   新闻
     -   攻略
+    -   下载
 -   喜马拉雅
     -   专辑
 -   EZTV

docs/README.md

@@ -1322,6 +1322,14 @@ language，语言，可在 [Trending 页](https://github.com/trending/javascript
 
 参数: name，游戏的编号可以在专题页的 url 中找到
 
+### 下载 <Author uid="sinchang"/>
+
+举例: [https://rsshub.app/3dm/detroitbecomehuman/download](https://rsshub.app/3dm/detroitbecomehuman/download)
+
+路由: `/3dm/:name/download`
+
+参数: name，游戏的编号可以在专题页的 url 中找到
+
 ## 喜马拉雅
 
 ### 专辑 <Author uid="jjeejj"/>

router.js

@@ -285,6 +285,7 @@ router.get('/nytimes/morning_post', require('./routes/nytimes/morning_post'));
 router.get('/uukanshu/chapter/:uid', require('./routes/uukanshu/chapter'));
 
 // 3dm
+router.get('/3dm/:name/download', require('./routes/3dm/download'));
 router.get('/3dm/:name/:type', require('./routes/3dm/news'));
 router.get('/3dm/news', require('./routes/3dm/news_center'));
 

routes/3dm/download.js

@@ -0,0 +1,52 @@
+const axios = require('../../utils/axios');
+const cheerio = require('cheerio');
+const config = require('../../config');
+
+module.exports = async (ctx) => {
+    const name = ctx.params.name;
+    const type = 'download';
+    const url = `http://www.3dmgame.com/games/${name}/${type}`;
+
+    const response = await axios({
+        method: 'get',
+        url: url,
+        headers: {
+            'User-Agent': config.ua,
+        },
+    });
+
+    const data = response.data;
+
+    const $ = cheerio.load(data);
+    const list = $('.ZQ_Left .Llis_4 li');
+    const items = [];
+
+    for (let i = 0; i < list.length; i++) {
+        let item = $(list[i]);
+        const url = item.find('.bt').attr('href');
+
+        const value = await ctx.cache.get(url);
+        if (value) {
+            item = JSON.parse(value);
+        } else {
+            item = {
+                title: item.find('.bt').text(),
+                pubDate: item.find('p').text(),
+                link: url,
+                guid: url,
+            };
+
+            ctx.cache.set(url, JSON.stringify(item), 24 * 60 * 60);
+        }
+
+        items.push(item);
+    }
+
+    ctx.state.data = {
+        title: $('title')
+            .text()
+            .split('_')[0],
+        link: url,
+        item: items,
+    };
+};