feat: 支持 Saraba1st 帖子订阅 (#2011)

docs/social-media.md

@@ -450,6 +450,14 @@
 
 <Route name="帖子" author="xyqfer" example="/nga/post/15939161" path="/nga/post/:tid"  :paramsDesc="['帖子 id, 可在帖子 URL 找到']"/>
 
+# Saraba1st
+
+<Route name="帖子" author="zengxs" example="/saraba1st/thread/1789863" path="/saraba1st/thread/:tid" :paramsDesc="['帖子 id']">
+
+帖子网址如果为 <https://bbs.saraba1st.com/2b/thread-1789863-1-1.html> 那么帖子 id 就是 `1789863`。
+
+</Route>
+
 ## Facebook
 
 <Route name="粉絲專頁" author="maple3142" example="/facebook/page/SonetPCR" path="/facebook/page/:id" :paramsDesc="['專頁 id']"/>

lib/router.js

@@ -1293,4 +1293,7 @@ router.get('/ps/list/:gridName', require('./routes/ps/list'));
 // 毕马威
 router.get('/kpmg/insights', require('./routes/kpmg/insights'));
 
+// Saraba1st
+router.get('/saraba1st/thread/:tid', require('./routes/saraba1st/thread'));
+
 module.exports = router;

lib/routes/saraba1st/thread.js

@@ -0,0 +1,47 @@
+const url = require('url');
+const axios = require('../../utils/axios');
+const cheerio = require('cheerio');
+const date = require('../../utils/date');
+
+module.exports = async (ctx) => {
+    const tid = ctx.params.tid;
+
+    const res = await axios.get('https://bbs.saraba1st.com/2b/forum.php', {
+        params: {
+            mod: 'viewthread',
+            tid: tid,
+            ordertype: 1,
+        },
+    });
+
+    const $ = cheerio.load(res.data);
+    const title = $('#thread_subject').text();
+
+    const list = $('#postlist > div[id^=post_]:not(:first-of-type)');
+    const count = [];
+
+    for (let i = 0; i < Math.min(list.length, 10); i++) {
+        count.push(i);
+    }
+    const resultItems = await Promise.all(
+        count.map(async (i) => {
+            const each = $(list[i]);
+            const floor = each.find('td.plc .pi a > em').text();
+            const floorUrl = each.find('td.plc .pi a').attr('href');
+            const item = {
+                title: `${title} #${floor}`,
+                link: url.resolve('https://bbs.saraba1st.com/2b/', floorUrl),
+                description: each.find('td.t_f').html(),
+                author: each.find('.authi .xw1').text(),
+                pubDate: date(each.find('.authi em').text()),
+            };
+            return Promise.resolve(item);
+        })
+    );
+
+    ctx.state.data = {
+        title: `Stage1 论坛 - ${title}`,
+        link: `https://bbs.saraba1st.com/2b/thread-${tid}-1-1.html`,
+        item: resultItems,
+    };
+};