feat: add aisixiang thinktank (#4735)

docs/reading.md

@@ -32,6 +32,16 @@ pageClass: routes
 
 </Route>
 
+### 思想库（专栏）
+
+<Route author="hoilc" example="/aisixiang/thinktank/WuQine/lunw" path="/aisixiang/thinktank/:name/:type?" :paramsDesc="['专栏 ID，一般为作者拼音，可在URL中找到', '栏目类型，参考下表，默认为`lunw`']">
+
+| 论文 | 时评 | 随笔  | 演讲 | 访谈  | 著作   | 读书  | 史论   | 译作  | 诗歌  | 书信   | 科学  |
+| ---- | ---- | ----- | ---- | ----- | ------ | ----- | ------ | ----- | ----- | ------ | ----- |
+| lunw | ship | shuib | yanj | fangt | zhuanz | dushu | shilun | yizuo | shige | shuxin | kexue |
+
+</Route>
+
 ## 爱下电子书
 
 ### 最新章节

lib/router.js

@@ -1259,6 +1259,7 @@ router.get('/whalegogo/portal/:type_id/:tagid?', require('./routes/whalegogo/por
 // 爱思想
 router.get('/aisixiang/column/:id', require('./routes/aisixiang/column'));
 router.get('/aisixiang/ranking/:type?/:range?', require('./routes/aisixiang/ranking'));
+router.get('/aisixiang/thinktank/:name/:type?', require('./routes/aisixiang/thinktank'));
 
 // Hacker News
 router.get('/hackernews/:section/:type?', require('./routes/hackernews/story'));

lib/routes/aisixiang/thinktank.js

@@ -0,0 +1,40 @@
+const got = require('@/utils/got');
+const cheerio = require('cheerio');
+const iconv = require('iconv-lite');
+const util = require('./utils');
+
+module.exports = async (ctx) => {
+    const { name, type = 'lunw' } = ctx.params;
+
+    const host = `http://www.aisixiang.com/thinktank/${name}.html`;
+
+    const response = await got.get(host, {
+        responseType: 'buffer',
+    });
+    response.data = iconv.decode(response.data, 'gbk');
+
+    const $ = cheerio.load(response.data);
+
+    const tds = $('td > img').filter(function () {
+        return $(this).attr('src') === `images/${type}.gif`;
+    });
+    if (tds.length === 0) {
+        throw `Type Not Found - ${type}`;
+    }
+
+    const list = tds.parent().next().find('a').slice(0, 5).get();
+
+    const items = await Promise.all(
+        list.map(async (e) => {
+            const link = $(e).attr('href');
+            return await ctx.cache.tryGet(link, async () => await util.ProcessFeed(link));
+        })
+    );
+
+    ctx.state.data = {
+        title: $('title').text(),
+        link: host,
+        description: $('meta[name="description"]').attr('content'),
+        item: items,
+    };
+};