完善 UID 获取

@@ -22,6 +22,8 @@ const memcached = require('yoho-connect-memcached');
 const uuid = require('uuid');
 const uuid = require('uuid');
 const _ = require('lodash');
 const _ = require('lodash');
 const pkg = require('./package.json');
 const pkg = require('./package.json');
+const sign = require('./library/sign');
+const cookie = require('./library/cookie');
 
 
 const app = express();
 const app = express();
 const MemcachedStore = memcached(session);
 const MemcachedStore = memcached(session);
@@ -70,6 +72,17 @@ app.use((req, res, next) => {
     if (req.session && _.isNumber(req.session._LOGIN_UID)) {
     if (req.session && _.isNumber(req.session._LOGIN_UID)) {
         req.user.uid = req.session._LOGIN_UID;
         req.user.uid = req.session._LOGIN_UID;
     }
     }
+
+    // session 没有读取到的时候，从 cookie 读取 UID
+    if (!req.user.uid && req.cookies._UID) {
+        let uid = cookie.getUid(req);
+
+        // 校验 cookie 的 uid 有没有被修改
+        if (req.cookies._TOKEN === sign.makeToken(uid)) {
+            req.user.uid = uid;
+        }
+    }
+
     next();
     next();
 });
 });