增加 商品 ID 检查

@@ -50,15 +50,19 @@ exports.index = (req, res, next) => {
  * @param  {[type]} res [description]
  * @return {[type]}     [description]
  */
-exports.intro = (req, res) => {
-    introModel({
+exports.intro = (req, res, next) => {
+    if (!req.params.productskn) {
+        return next();
+    }
+
+    introModel.getintroData({
         productskn: req.params.productskn
-    }).then((result) => {
+    }, req).then((result) => {
         res.render('detail/intro', {
             result: result,
             layout: false
         });
-    });
+    }).catch(next);
 };
 
 /**

@@ -319,16 +319,20 @@ const getSizeInfo = (sizeInfo) => {
     return dest;
 };
 
-module.exports = (data) => {
+let getintroData = (data, req) => {
     var finalResult;
 
     return api.get('', {
         method: 'h5.product.intro',
         productskn: data.productskn,
-        udid: 'f528764d624db129b32c21fbca0cb8d6'
+        udid: req.sessionID || 'yoho'
     }).then(result => {
         finalResult = getSizeInfo(result);
 
         return finalResult;
     });
 };
+
+module.exports = {
+    getintroData
+};