Merge branch 'feature/user-session' into feature/format

@@ -69,7 +69,18 @@ passport.use('local', new LocalStrategy({
                 if (result.code && result.code === 200 && result.data.uid) {
                     cache.del(errorLoginKey).catch(() => {});
 
-                    done(null, result.data);
+                    let uid = {
+                        toString() {
+                            return this.uid;
+                        },
+                        uid: result.data.uid,
+                        sessionKey: result.data.session_key,
+                        isValid() {
+                            return this.uid && this.sessionKey;
+                        }
+                    };
+
+                    done(null, {uid});
                 } else {
                     errLoginTimes = errLoginTimes + 1;
                     accountTimes = accountTimes + 1;