Merge branch 'hotfix/guang'

@@ -50,7 +50,7 @@ const index = (req, res, next) => {
             return res.send(feed.render('atom-1.0'));
         }
         return res.send(feed.render('rss-2.0'));
-    });
+    }).catch(next);
 };
 const rss = (req, res, next, gmt) => {
     let gender = req.query.gender || '1,2,3',
@@ -72,7 +72,7 @@ const rss = (req, res, next, gmt) => {
             layout: false,
             items: result
         });
-    });
+    }).catch(next);
 };
 
 module.exports = {

@@ -18,7 +18,7 @@ const removeHtml = (str) => {
  * [html转为转义]
  */
 const htmlToEscape = (html) => {
-    return html.replace(/[<>&"]/g, (e) => {
+    return (html || '').replace(/[<>&"]/g, (e) => {
         return _htmlMap[e];
 	                                                                                });
 };
@@ -27,7 +27,7 @@ const htmlToEscape = (html) => {
  * [转义符转为html]
  */
 const escapeToHtml = (str) => {
-    return str.replace(/&(lt|gt|nbsp|amp|quot);/g, (match, e) => {
+    return (str || '').replace(/&(lt|gt|nbsp|amp|quot);/g, (match, e) => {
         return _EscapeMap[e];
 	                                                                                });
 };