app: limit title length by bytes, close #663

middleware/template.js

@@ -31,7 +31,13 @@ module.exports = async (ctx, next) => {
         }
         // trim title length
         ctx.state.data.item.forEach((item) => {
-            item.title = item.title.length > 80 ? `${item.title.slice(0, 80)}...` : item.title;
+            for (let length = 0, i = 0; i < item.title.length; i++) {
+                length += Buffer.from(item.title[i]).length !== 1 ? 2 : 1;
+                if (length > 100) {
+                    item.title = `${item.title.slice(0, i)}...`;
+                    break;
+                }
+            }
         });
 
         const data = {

routes/disqus/posts.js

@@ -40,7 +40,7 @@ module.exports = async (ctx) => {
         item: data.map((item) => {
             const thread = threads.filter((i) => i.id === item.thread)[0];
             return {
-                title: `${item.author.name}: ${item.raw_message > 24 ? item.raw_message.slice(0, 24) + '...' : item.raw_message}`,
+                title: `${item.author.name}: ${item.raw_message}`,
                 description: `${item.author.name} 在《${thread.clean_title}》中发表评论: ${item.message}`,
                 pubDate: new Date(item.createdAt).toUTCString(),
                 link: `${thread.link}/#comment-${item.id}`,

routes/instagram/user.js

@@ -65,9 +65,10 @@ module.exports = async (ctx) => {
             for (let i = 0; i < images[index].length; i++) {
                 imgTPL += `<img referrerpolicy="no-referrer" src="${images[index][i]}"><br>`;
             }
+            const title = (item.edge_media_to_caption.edges && item.edge_media_to_caption.edges[0] && item.edge_media_to_caption.edges[0].node.text) || '无题/Untitled';
             return {
-                title: `${type}${(item.edge_media_to_caption.edges && item.edge_media_to_caption.edges[0] && item.edge_media_to_caption.edges[0].node.text) || '无题/Untitled'}`,
-                description: `${tip}${imgTPL}`,
+                title: `${type}${title}`,
+                description: `${title}<br>${tip}${imgTPL}`,
                 pubDate: new Date(item.taken_at_timestamp * 1000).toUTCString(),
                 link: `https://www.instagram.com/p/${item.shortcode}/`,
             };

routes/telegram/channel.js

@@ -83,7 +83,7 @@ module.exports = async (ctx) => {
             }
 
             return {
-                title: text.length > 24 ? text.slice(0, 24) + '...' : text,
+                title: text,
                 description: html,
                 pubDate: new Date(item.date * 1000).toUTCString(),
                 link: `https://t.me/${username}/${item.message_id}`,

routes/twitter/user.js

@@ -30,7 +30,7 @@ module.exports = async (ctx) => {
                 url += `<a href="${u.expanded_url}" target="_blank"></a>`;
             });
             return {
-                title: `${item.in_reply_to_screen_name ? 'Re ' : ''}${item.full_text.length > 30 ? item.full_text.slice(0, 30) + '...' : item.full_text}`,
+                title: `${item.in_reply_to_screen_name ? 'Re ' : ''}${item.full_text}`,
                 description: `${item.in_reply_to_screen_name ? 'Re ' : ''}${item.full_text}${url}${img}`,
                 pubDate: new Date(item.created_at).toUTCString(),
                 link: `https://twitter.com/${id}/status/${item.id_str}`,

routes/weibo/keyword.js

@@ -20,7 +20,7 @@ module.exports = async (ctx) => {
         item: data.map((item) => {
             const title = item.mblog.text.replace(/<img.*?>/g, '[图片]').replace(/<.*?>/g, '');
             return {
-                title: `${item.mblog.user.screen_name}: ${title.length > 24 ? title.slice(0, 24) + '...' : title}`,
+                title: `${item.mblog.user.screen_name}: ${title}`,
                 description: `${item.mblog.user.screen_name}: ${weiboUtils.format(item.mblog)}`,
                 pubDate: weiboUtils.getTime(item.mblog.created_at),
                 link: `https://weibo.com/${item.mblog.user.id}/${item.mblog.bid}`,

routes/zhihu/activities.js

@@ -43,7 +43,7 @@ module.exports = async (ctx) => {
                         url = `https://zhuanlan.zhihu.com/p/${detail.id}`;
                         break;
                     case 'pin':
-                        title = detail.excerpt_title.length > 17 ? detail.excerpt_title.slice(0, 17) + '...' : detail.excerpt_title;
+                        title = detail.excerpt_title;
                         detail.content.forEach((contentItem) => {
                             if (contentItem.type === 'text') {
                                 text = `<p>${contentItem.own_text}</p>`;