Add timeout for hitokoto

utility.js

@@ -248,15 +248,20 @@ module.exports = {
     return md5.digest('hex');
   },
   async hitokoto() {
+    try {
       let request = require('request-promise');
       return await request({
         uri: 'http://api.hitokoto.us/rand',
+        timeout: 1500,
         qs: {
           encode: 'json',
           cat: 'a'
         },
         json: true
       });
+    } catch (e) {
+      return null;
+    }
   },
   isValidUsername(s) {
     return /^[a-zA-Z0-9\-\_]+$/.test(s);