feat(routes): CSDN 博客 (#10447)

* feat(routes): CSDN Blog

* fix(docs): add CSDN Blog paramsDesc

docs/blog.md

@@ -349,3 +349,10 @@ username 为博主用户名，而非`xxx.hashnode.dev`中`xxx`所代表的 blog
 :::
 
 </Route>
+
+
+## CSDN
+
+### 用户博客
+
+<Route author="Jkker" example="/csdn/blog/csdngeeknews" path="/csdn/blog/:user" radar="1" :paramsDesc="['`user` 为 CSDN 用户名，可以在主页 url 中找到']" />

docs/en/blog.md

@@ -95,3 +95,10 @@ Limit the number of entries to be retrieved by adding `?limit=x` to the end of t
 ### Entry
 
 <RouteEn author="nczitzk" example="/yuzu-emu/entry" path="/yuzu-emu/entry" />
+
+
+## CSDN
+
+### User Feed
+
+<RouteEn author="Jkker" example="/csdn/blog/csdngeeknews" path="/csdn/blog/:user" radar="1" :paramsDesc="['`user` is the username of a CSDN blog which can be found in the url of the home page']" />

lib/v2/csdn/blog.js

@@ -0,0 +1,39 @@
+const got = require('@/utils/got');
+const cheerio = require('cheerio');
+const rssParser = require('@/utils/rss-parser');
+
+module.exports = async (ctx) => {
+    const user = ctx.params.user;
+
+    const rootUrl = 'https://blog.csdn.net';
+    const blogUrl = `${rootUrl}/${user}`;
+    const rssUrl = blogUrl + '/rss/list';
+
+    const feed = await rssParser.parseURL(rssUrl);
+
+    const items = await Promise.all(
+        feed.items.map((item) =>
+            ctx.cache.tryGet(item.link, async () => {
+                const response = await got({
+                    method: 'get',
+                    url: item.link,
+                });
+
+                const $ = cheerio.load(response.data);
+
+                const description = $('#content_views').html();
+
+                return {
+                    ...item,
+                    description,
+                };
+            })
+        )
+    );
+
+    ctx.state.data = {
+        ...feed,
+        title: `${feed.title} - CSDN博客`,
+        item: items,
+    };
+};

lib/v2/csdn/maintainer.js

@@ -0,0 +1,3 @@
+module.exports = {
+    '/blog': ['Jkker'],
+};

lib/v2/csdn/radar.js

@@ -0,0 +1,13 @@
+module.exports = {
+    'csdn.net': {
+        _name: 'CSDN',
+        blog: [
+            {
+                title: '博客',
+                docs: 'https://docs.rsshub.app/blog.html#csdn',
+                source: ['/:user'],
+                target: '/csdn/blog/:user',
+            },
+        ],
+    },
+};

lib/v2/csdn/router.js

@@ -0,0 +1,3 @@
+module.exports = function (router) {
+    router.get('/blog/:user', require('./blog'));
+};