firstLoginShowCaptcha-switch

@@ -550,7 +550,16 @@ exports.loginShowCaptchaByIp = function(req, res, next) {
         req.yoho.captchaShow = false;
     }
 
-    co(function*() {
+    // 第一次登录要不要展示验证码：后台开关勾选，首次登录不需要展示
+    let firstLoginShowCaptcha = !_.get(req.app.locals.wap, 'open.firstLoginShowCaptcha', false);
+
+    if (firstLoginShowCaptcha) {
+        // 因撞库，每次都展示
+        req.yoho.captchaShow = true;
+        return next();
+    } else {
+        // 勿删，可能要改回来
+        co(function* () {
             let hasErrorLog = yield cache.get(`loginErrorIp:${req.yoho.clientIp}`);
 
             log.info(`Pagerender clientip ${req.yoho.clientIp} status is ` + hasErrorLog);
@@ -563,6 +572,7 @@ exports.loginShowCaptchaByIp = function(req, res, next) {
             req.yoho.captchaShow = true;
             next();
         });
+    }
 };
 
 exports.common = common;