fix

@@ -8,11 +8,17 @@ const captchaService = require('../models/captcha-service');
 const helpers = global.yoho.helpers;
 const CAPTCHA = 'yoho4946abcdef#$%&!@';
 const request = require('request');
+const logger = global.yoho.logger;
 
 // 对比函数
 const _mustEqual = (req) => {
-    return req.session.captcha && (req.body.verifyCode === req.session.captcha ||
+    let result = req.session.captcha && (req.body.verifyCode === req.session.captcha ||
         req.body.verifyCode === CAPTCHA);
+
+    logger.info(`captcha auth [${result ? 'success' : 'fail'}]`,
+        `CLIENT [${req.body.verifyCode}] SERVER [${req.session.captcha}]`);
+
+    return result;
 };
 
 // 中间件