feat: add eastday shanghai channel (#2363)

* feat: add eastday shanghai channel

* fix: revert change in readme file

docs/traditional-media.md

@@ -114,6 +114,14 @@ Category 列表:
 
 </Route>
 
+## 东方网
+
+### 上海新闻
+
+<Route author="saury" example="/eastday/sh" path="/eastday/sh" />
+
+</Route>
+
 ## 多维新闻网
 
 ### 要闻

lib/router.js

@@ -1395,4 +1395,7 @@ router.get('/005tv/zx/latest', require('./routes/005tv/zx'));
 // Polimi News
 router.get('/polimi/news/:language?', require('./routes/polimi/news'));
 
+// 东方网-上海
+router.get('/eastday/sh', require('./routes/eastday/sh'));
+
 module.exports = router;

lib/routes/eastday/sh.js

@@ -0,0 +1,57 @@
+const got = require('@/utils/got');
+const cheerio = require('cheerio');
+
+module.exports = async (ctx) => {
+    const domain = 'http://wap.eastday.com';
+
+    const response = await got({
+        method: 'get',
+        url: `${domain}/node2/node3/n5/index5_t81.html`,
+    });
+    const data = JSON.parse(response.body.trim());
+
+    const result = await Promise.all(
+        data.newslist.map(async (item) => {
+            const link = item.newsurl.match(/^http/) ? item.newsurl : domain + item.newsurl;
+            const description = item.imgurl1 ? `<img referrerpolicy="no-referrer" src="${domain}${item.imgurl1}"><br>` : '';
+            const entity = {
+                title: item.newstitle,
+                author: item.source,
+                description,
+                pubDate: new Date(item.createTime).toUTCString(),
+                link,
+            };
+
+            try {
+                const cacheKey = `eastday_sh_${item.newsurl}`;
+                const xmlLink = domain + item.newsurl.split('_')[0] + '_K77.xml';
+                // 判断缓存中是否存在
+                const cacheValue = await ctx.cache.get(cacheKey);
+                if (cacheValue) {
+                    entity.description += cacheValue;
+                } else {
+                    const article = await got({
+                        method: 'get',
+                        url: xmlLink,
+                    });
+                    // 解析html内容
+                    const $ = cheerio.load(article.body, { xmlMode: true });
+                    const content = $('zw').text();
+                    // 存放到缓存区
+                    ctx.cache.set(cacheKey, content);
+                    entity.description += content;
+                }
+            } catch (error) {
+                console.log(error);
+            }
+
+            return entity;
+        })
+    );
+
+    ctx.state.data = {
+        title: `东方网-上海`,
+        link: `${domain}/wap/sh.html`,
+        item: result,
+    };
+};