fix: 观察者网风闻话题 (#6074)

docs/new-media.md

@@ -761,9 +761,21 @@ others = 热点新闻 + 滚动新闻
 
 </Route>
 
-### 观察者风闻话题
+### 风闻话题
 
-<Route author="occupy5" example="/guancha/topic/113" path="/guancha/topic/:id" :paramsDesc="['话题id， 可在URL中找到']" />
+<Route author="occupy5 nczitzk" example="/guancha/topic/110/1" path="/guancha/topic/:id?/:order?" :paramsDesc="['话题 id，可在URL中找到，默认为全部，即为 `0`', '排序参数，见下表']">
+
+| 最新回复 | 最新发布 | 24 小时最热 | 3 天最热 | 7 天最热 | 3 个月最热 | 专栏文章 |
+| -------- | -------- | ----------- | -------- | -------- | ---------- | -------- |
+| 1        | 2        | 3           | 6        | 7        | 8          | 5        |
+
+::: tip 提示
+
+仅在话题 id 为 0，即选择 全部 时，**3 个月最热**、**24 小时最热**、**3 天最热**、**7 天最热** 和 **专栏文章** 参数生效。
+
+:::
+
+</Route>
 
 ### 个人主页文章
 

lib/router.js

@@ -1693,11 +1693,11 @@ router.get('/zfrontier/postlist/:type', require('./routes/zfrontier/postlist'));
 router.get('/zfrontier/board/:boardId', require('./routes/zfrontier/board_postlist'));
 
 // 观察者网
-router.get('/guancha/topic/:id', require('./routes/guancha/topic'));
+router.get('/guancha/topic/:id/:order?', require('./routes/guancha/topic'));
 router.get('/guancha/personalpage/:uid', require('./routes/guancha/personalpage'));
 router.get('/guancha/:caty?', require('./routes/guancha/index'));
 
-router.get('/guanchazhe/topic/:id', require('./routes/guancha/topic'));
+router.get('/guanchazhe/topic/:id/:order?', require('./routes/guancha/topic'));
 router.get('/guanchazhe/personalpage/:uid', require('./routes/guancha/personalpage'));
 router.get('/guanchazhe/index/:caty?', require('./routes/guancha/index'));
 

lib/routes/guancha/topic.js

@@ -1,53 +1,56 @@
-const cheerio = require('cheerio');
 const got = require('@/utils/got');
+const cheerio = require('cheerio');
 const date = require('@/utils/date');
-const url = require('url');
-
-const host = 'https://user.guancha.cn';
 
 module.exports = async (ctx) => {
-    const id = ctx.params.id;
-    const link = `https://user.guancha.cn/topic/attention-topic?follow-topic-id=${id}`;
-    const res = await got.get(encodeURI(link));
-    const $ = cheerio.load(res.data);
-    // 话题名称
-    const title = $('.topic-main').text();
-    // 文章列表
-    const list = $('.article-list .list-item h4')
-        .find('a')
-        .map((i, e) => $(e).attr('href'))
+    const id = ctx.params.id || '0';
+    const order = ctx.params.order || '1';
+
+    const rootUrl = 'https://user.guancha.cn';
+    const currentUrl = `${rootUrl}/${id === '0' ? 'main/index-list.json?' : 'topic/post-list?topic_id=' + id}&page=1&order=${order}`;
+
+    const response = await got({
+        method: 'get',
+        url: currentUrl,
+    });
+
+    const $ = cheerio.load(response.data);
+
+    const list = $('ul.home li .list-item h4 a')
+        .slice(0, 10)
+        .map((_, item) => {
+            item = $(item);
+            return {
+                title: item.text(),
+                link: `${rootUrl}${item.attr('href')}`,
+            };
+        })
         .get();
 
-    const out = await Promise.all(
-        list.map(async (itemUrl) => {
-            // 将相对链接替换为绝对链接
-            const absoluteUrl = url.resolve(host, itemUrl);
-            const cache = await ctx.cache.get(absoluteUrl);
-            // 判断缓存
-            if (cache) {
-                return Promise.resolve(JSON.parse(cache));
-            }
-            const res = await got.get(absoluteUrl);
-            const $ = cheerio.load(res.data);
+    const items = await Promise.all(
+        list.map(
+            async (item) =>
+                await ctx.cache.tryGet(item.link, async () => {
+                    const detailResponse = await got({
+                        method: 'get',
+                        url: item.link,
+                    });
+                    const content = cheerio.load(detailResponse.data);
 
-            const dateStr = $('.user-main .time1').text();
-            const item = {
-                title: $('.article-content h1').text(),
-                author: $('.user-main h4').first().find('a').text(),
-                link: absoluteUrl,
-                description: $('.article-txt-content').html(),
-                // 格式化日期
-                pubDate: date(dateStr),
-            };
-            ctx.cache.set(absoluteUrl, JSON.stringify(item));
+                    item.pubDate = date(content('.time1').text(), 8);
+                    item.author = content('.user-main h4 a').eq(0).text();
+                    item.description = content('.article-txt-content').html();
 
-            return Promise.resolve(item);
-        })
+                    return item;
+                })
+        )
     );
 
+    $('h1.title span').remove();
+
     ctx.state.data = {
-        title: `风闻话题-${title}`,
-        link: link,
-        item: out,
+        title: `观察者网 - ${id === '0' ? '风闻' : $('h1.title').text()}`,
+        link: currentUrl,
+        item: items,
     };
 };