开源中国资讯全文RSS (#443)

来源：https://www.oschina.net/news/
每次取前10条的全文内容并缓存，有效期一天

README.md

@@ -218,6 +218,8 @@ RSSHub 是一个轻量、易于扩展的 RSS 生成器，可以给任何奇奇
     -   脚本更新
 -   LinkedKeeper
     -   博文
+-   开源中国
+    -   资讯
 
 </details>
 

docs/README.md

@@ -1754,3 +1754,13 @@ domain，按脚本生效域名过滤，可选
 type，博文分类，为 URL 中 `.action` 的文件名
 
 id，可选，分区或标签的 ID，对应 URL 中的 `sid` 或 `tid`
+
+## 开源中国
+
+### 资讯
+
+举例: [https://rsshub.app/oschina/news](https://rsshub.app/oschina/news)
+
+路由: `/oschina/news`
+
+参数：无

router.js

@@ -396,4 +396,7 @@ router.get('/greasyfork/:language/:domain?', require('./routes/greasyfork/script
 // LinkedKeeper
 router.get('/linkedkeeper/:type/:id?', require('./routes/linkedkeeper/index'));
 
+// 开源中国
+router.get('/oschina/news', require('./routes/oschina/news'));
+
 module.exports = router;

routes/oschina/news.js

@@ -0,0 +1,57 @@
+const axios = require('../../utils/axios');
+const cheerio = require('cheerio');
+const config = require('../../config');
+
+module.exports = async (ctx) => {
+    const res = await axios({
+        method: 'get',
+        url: 'https://www.oschina.net/news/',
+        headers: {
+            'User-Agent': config.ua,
+            Referer: 'https://www.oschina.net/news/',
+        },
+    });
+    const data = res.data;
+    const $ = cheerio.load(data);
+    const list = $('#newsList').find('.news-item');
+    const count = [];
+    for (let i = 0; i < Math.min(list.length, 10); i++) {
+        count.push(i);
+    }
+    const resultItem = await Promise.all(
+        count.map(async (i) => {
+            const each = $(list[i]);
+            const url = `https://www.oschina.net${each.find('a', 'h3').attr('href')}`;
+            const item = {
+                title: each.find('a', 'h3').attr('title'),
+                description: '',
+                link: url,
+            };
+            const key = 'oschina' + url;
+            const value = await ctx.cache.get(key);
+
+            if (value) {
+                item.description = value;
+            } else {
+                const detail = await axios({
+                    method: 'get',
+                    url: url,
+                    headers: {
+                        'User-Agent': config.ua,
+                        Referer: url,
+                    },
+                });
+                const content = cheerio.load(detail.data);
+                item.description = content('#articleContent').html();
+                ctx.cache.set(key, item.description, 24 * 60 * 60);
+            }
+            return Promise.resolve(item);
+        })
+    );
+
+    ctx.state.data = {
+        title: '开源中国-资讯',
+        link: 'https://www.oschina.net/news/',
+        item: resultItem,
+    };
+};