add 豆瓣浏览发现页不同内容分类 (#1524)

docs/README.md

@@ -475,6 +475,8 @@ RSSHub 提供下列 API 接口:
 
 <route name="浏览发现" author="clarkzsd" example="/douban/explore" path="/douban/explore"/>
 
+<route name="浏览发现分栏目" author="LogicJake" example="/douban/explore/column/2" path="/douban/explore_column/:id" :paramsDesc="['分栏目id']"/>
+
 <route name="新书速递" author="fengkx" example="/douban/book/latest" path="douban/book/latest"/>
 
 <route name="最新增加的音乐" author="fengkx xyqfer" example="/douban/music/latest/chinese" path="/douban/music/latest/:area?" :paramsDesc="['区域类型，默认全部']">

lib/router.js

@@ -210,6 +210,7 @@ router.get('/douban/commercialpress/latest', require('./routes/douban/commercial
 router.get('/douban/bookstore', require('./routes/douban/bookstore'));
 router.get('/douban/book/rank/:type', require('./routes/douban/book/rank'));
 router.get('/douban/doulist/:id', require('./routes/douban/doulist'));
+router.get('/douban/explore/column/:id', require('./routes/douban/explore_column'));
 
 // 煎蛋
 router.get('/jandan/:sub_model', require('./routes/jandan/pic'));

lib/routes/douban/explore_column.js

@@ -0,0 +1,56 @@
+const axios = require('../../utils/axios');
+const cheerio = require('cheerio');
+const url = require('url');
+
+const host = 'https://www.douban.com/explore/column/';
+module.exports = async (ctx) => {
+    const id = ctx.params.id;
+    const link = url.resolve(host, id);
+    const response = await axios.get(link);
+    const $ = cheerio.load(response.data);
+    const title = $('div.h1').text();
+
+    const list = $('div.item')
+        .slice(0, 10)
+        .map(function() {
+            const info = {
+                title: $(this)
+                    .find('div.title a')
+                    .text(),
+                link: $(this)
+                    .find('div.title a')
+                    .attr('href'),
+                author: $(this)
+                    .find('div.usr-pic a')
+                    .text(),
+            };
+            return info;
+        })
+        .get();
+
+    const out = await Promise.all(
+        list.map(async (info) => {
+            const title = info.title;
+            const author = info.author;
+            const itemUrl = info.link;
+
+            const response = await axios.get(itemUrl);
+            const $ = cheerio.load(response.data);
+            const description = $('#link-report').html();
+
+            const single = {
+                title: title,
+                link: itemUrl,
+                description: description,
+                author: author,
+            };
+            return Promise.resolve(single);
+        })
+    );
+
+    ctx.state.data = {
+        title: `${title}-豆瓣发现`,
+        link: link,
+        item: out,
+    };
+};