feat: add zreading fulltext (#2522)

* feat: add zreding fulltext

* feat: add zreading fulltext

* feat: add zreading fulltext

* feat: add zreading fulltext

docs/reading.md

@@ -123,3 +123,9 @@ pageClass: routes
 ### 章节
 
 <Route author="georeth" example="/zongheng/chapter/672340" path="/zongheng/chapter/:id" :paramsDesc="['小说 id, 可在对应小说页 URL 中找到']"/>
+
+## 左岸读书
+
+### 主页
+
+<Route author="kt286" example="/zreading" path="/zreading" />

lib/router.js

@@ -1452,4 +1452,7 @@ router.get('/changba/:userid', require('./routes/changba/user'));
 // 掌上英雄联盟
 router.get('/lolapp/recommend', require('./routes/lolapp/recommend'));
 
+// 左岸读书
+router.get('/zreading', require('./routes/zreading/home'));
+
 module.exports = router;

lib/routes/zreading/home.js

@@ -0,0 +1,56 @@
+const got = require('@/utils/got');
+const cheerio = require('cheerio');
+const parser = require('@/utils/rss-parser');
+
+module.exports = async (ctx) => {
+    const feed = await parser.parseURL('http://www.zreading.cn/feed');
+
+    const ProcessFeed = (data) => {
+        const $ = cheerio.load(data);
+
+        $('script').remove();
+        $('.adsbygoogle').remove();
+
+        // 还原图片地址
+        $('img').each((index, elem) => {
+            const $elem = $(elem);
+            $elem.attr('referrerpolicy', 'no-referrer');
+        });
+
+        // 提取内容
+        return $('.grap').html();
+    };
+
+    const items = await Promise.all(
+        feed.items.map(async (item) => {
+            const cache = await ctx.cache.get(item.link);
+            if (cache) {
+                return Promise.resolve(JSON.parse(cache));
+            }
+
+            const response = await got({
+                method: 'get',
+                url: item.link,
+            });
+
+            const description = ProcessFeed(response.data);
+
+            const single = {
+                title: item.title,
+                description,
+                pubDate: item.pubDate,
+                link: item.link,
+                author: item.author,
+            };
+            ctx.cache.set(item.link, JSON.stringify(single));
+            return Promise.resolve(single);
+        })
+    );
+
+    ctx.state.data = {
+        title: feed.title,
+        link: feed.link,
+        description: feed.description,
+        item: items,
+    };
+};