fix default udid

@@ -7,6 +7,7 @@ const yohoLib = require('yoho-node-lib');
 const pkg = require('./package.json');
 const devtools = require('./doraemon/middleware/devtools');
 const _ = require('lodash');
+const uuid = require('uuid');
 
 // 全局注册library
 yohoLib.global(config);
@@ -98,6 +99,24 @@ exports.createApp = async(app) => {
     app.use(userMiddleware);
     app.use(serverMiddleware);
 
+    app.use((req, res, next) => {
+      // 独立的 UDID
+      if (!req.cookies.udid || (req.yoho.isApp && req.query.udid)) {
+        let udid = uuid.v4();
+
+        if (req.yoho.isApp && req.query.udid) {
+            udid = req.query.udid;
+        }
+
+        res.cookie('udid', udid, {
+            domain: 'yohobuy.com',
+            expires: new Date(Date.now() + 365 * 24 * 60 * 60 * 1000)
+        });
+        req.cookies.udid = udid;
+      }
+      next();
+    });
+
     if (!app.locals.proEnv) {
       app.use((req, res, next) => {
         if (/cordova/.test(req.url)) {

@@ -141,6 +141,7 @@ const render = (route) => {
         ip: req.yoho.clientIp,
         path: req.url,
         uid: req.user.uid,
+        udid: req.cookies.udid || '',
         ua: req.get('user-agent'),
         time: new Date()
       }));