记录 Circular 错误

@@ -40,6 +40,8 @@ app.locals.startTime = moment().format('YYYYMMDDHH');
 // 全局注册library
 yohoLib.global(config);
 
+const logger = global.yoho.logger;
+
 // zookeeper
 if (config.zookeeperServer) {
     require('yoho-zookeeper')(config.zookeeperServer, 'wap', app.locals.wap = {}, global.yoho.cache);
@@ -52,6 +54,23 @@ app.set('etag', false);
 
 app.enable('trust proxy');
 
+const safeStringify = require('fast-safe-stringify');
+
+// 循环对象检测
+app.set('json replacer', function(key, value) {
+    if (!key) {
+        let safeStr = safeStringify(value);
+
+        if (/\[Circular\]/.test(safeStr)) {
+            logger.error('stringify error:', value);
+        }
+
+        return JSON.parse(safeStr);
+    }
+
+    return value;
+});
+
 // 请求限制中间件
 if (!app.locals.devEnv) {
     app.use(require('./doraemon/middleware/limiter'));
@@ -60,8 +79,6 @@ if (!app.locals.devEnv) {
 // 指定libray目录
 global.utils = path.resolve('./utils');
 
-const logger = global.yoho.logger;
-
 // 访问域名层级
 app.set('subdomain offset', 3);
 app.use(global.yoho.hbs({

@@ -32,6 +32,7 @@
     "connect-multiparty": "^2.0.0",
     "cookie-parser": "^1.4.3",
     "express": "^4.14.1",
+    "fast-safe-stringify": "^1.1.13",
     "feed": "^1.0.2",
     "geetest": "^4.1.1",
     "lodash": "^4.17.4",