feat: add typora/changelog router (#1122)

docs/README.md

@@ -1089,6 +1089,10 @@ GitHub 官方也提供了一些 RSS:
 
 <route name="应用更新" author="DIYgod" example="/xclient/app/sketch" path="/xclient/app/:name" :paramsDesc="['应用名, 可在应用页 URL 中找到']"/>
 
+### Typora
+
+<route name="Changelog" author="cnzgray" example="/typora/changelog" path="/typora/changelog"/>
+
 ## 大学通知
 
 ### 上海海事大学

router.js

@@ -790,6 +790,9 @@ router.get('/eeo/:category?', require('./routes/eeo/index'));
 // 腾讯视频
 router.get('/tencentvideo/playlist/:id', require('./routes/tencent/video/playlist'));
 
+// typora
+router.get('/typora/changelog', require('./routes/typora/changelog'));
+
 // TSSstatus
 router.get('/tssstatus/:board/:build', require('./routes/tssstatus'));
 

routes/typora/changelog.js

@@ -0,0 +1,70 @@
+const axios = require('../../utils/axios');
+const cheerio = require('cheerio');
+
+module.exports = async (ctx) => {
+    const host = 'https://support.typora.io/';
+
+    const response = await axios({
+        method: 'get',
+        url: host,
+        headers: {
+            Referer: host,
+        },
+    });
+
+    const $ = cheerio.load(response.data);
+
+    const parseContent = async (link) => {
+        // Check cache
+        const cache = await ctx.cache.get(link);
+        if (cache) {
+            return Promise.resolve(JSON.parse(cache));
+        }
+
+        const response = await axios({
+            method: 'get',
+            url: link,
+            headers: {
+                Referer: host,
+            },
+        });
+
+        const $ = cheerio.load(response.data);
+
+        const title = $('h1').text();
+        const pubDate = new Date($('.post-meta time').text());
+        // const author = $('.post-meta span').text();
+        const html = $('#pagecontainer').html();
+
+        const result = {
+            title: title,
+            link: link,
+            guid: link,
+            pubDate: pubDate,
+            description: html,
+        };
+
+        ctx.cache.set(link, JSON.stringify(result), 3 * 60 * 60);
+
+        return result;
+    };
+
+    const items = await Promise.all(
+        $('#content > ul:nth-child(2) > li')
+            .get()
+            .map(async (item) => {
+                const node = $('a', item);
+                const link = node.attr('href');
+                const result = await parseContent(link);
+
+                return Promise.resolve(result);
+            })
+    );
+
+    ctx.state.data = {
+        title: 'Typora Changelog',
+        link: host,
+        description: 'Typora Changelog',
+        item: items,
+    };
+};