feat: filter out articles which require permission (#2698)

in NJTECH jwc

lib/routes/universities/njtech/jwc.js

@@ -34,16 +34,20 @@ module.exports = async (ctx) => {
             }
             const response = await got.get(itemUrl);
             const $ = cheerio.load(response.data);
-            const single = {
-                title: $('#mainRight .title').text(),
-                link: itemUrl,
-                description: $('#vsb_content').html(),
-                pubDate: $('.time')
-                    .text()
-                    .match(/(\d{4}-\d{2})-\d{2}/)[0],
-            };
-            ctx.cache.set(itemUrl, JSON.stringify(single));
-            return Promise.resolve(single);
+            const targetDate = $('.time')
+                .text()
+                .match(/(\d{4}-\d{2})-\d{2}/);
+
+            if (targetDate) {
+                const single = {
+                    title: $('#mainRight .title').text(),
+                    link: itemUrl,
+                    description: $('#vsb_content').html(),
+                    pubDate: targetDate[0],
+                };
+                ctx.cache.set(itemUrl, JSON.stringify(single));
+                return Promise.resolve(single);
+            }
         })
     );
     const info = '教务公告';
@@ -51,6 +55,6 @@ module.exports = async (ctx) => {
     ctx.state.data = {
         title: '南京工业大学教务处 - ' + info,
         link,
-        item: out,
+        item: out.filter((i) => i),
     };
 };