修改接口签名

@@ -6,7 +6,7 @@
 
 'use strict';
 
-const _ = require('lodash');
+const qs = require('querystring');
 const md5 = require('md5');
 
 const privateKey = {
@@ -24,7 +24,7 @@ const privateKey = {
  * @return {Object}          排序之后的参数对象
  */
 const packageSort = argument => {
-    var newObj = {};
+    let newObj = {};
 
     for (let k of Object.keys(argument).sort()) {
         newObj[k] = argument[k];
@@ -39,41 +39,32 @@ const packageSort = argument => {
  * @return {string}          生成的签名字符串
  */
 const makeSign = argument => {
-    var qs = [];
-
-    _.forEach(argument, function(value, key) {
-        qs.push(key + '=' + _.trim(value));
-    });
-
-    return md5(qs.join('&')).toLowerCase();
+    return md5(qs.stringify(argument)).toLowerCase();
 };
 
 // 生成API签名，调用后端接口的时候有私钥校验
 exports.apiSign = (params) => {
-
-    var clientType = params.client_type || 'h5';
-
     /* eslint-disable */
     var sign = packageSort(Object.assign({
-        client_type: clientType,
-        private_key: privateKey[clientType],
+        client_type: 'h5',
+        private_key: privateKey.h5,
         app_version: '3.8.2',
         os_version: 'yohobuy:h5',
         screen_size: '720x1280',
         v: '7'
     }, params));
-
     /* eslint-enable */
 
-    return Object.assign(sign, {
-
+    sign = Object.assign(sign, {
         client_secret: makeSign(sign) // eslint-disable-line camelcase
     });
+    delete sign.private_key;
+    return sign;
 };
 
 // 检查签名，APP 访问 H5 页面的时候需要检查
 exports.checkSign = (params) => {
-    var clientSecret = params.client_secret, // eslint-disable-line camelcase
+    let clientSecret = params.client_secret, // eslint-disable-line camelcase
         sortedParams;
 
     // 忽略部分参数
@@ -90,7 +81,7 @@ exports.checkSign = (params) => {
 
 // 检查签名，APP 访问 H5 页面的时候需要检查, 有可能不同于上边的签名方式
 exports.webSign = (params) => {
-    var webPrivateKey = 'yohobuyapp';
+    const webPrivateKey = 'yohobuyapp';
 
     return params.key === md5(md5(webPrivateKey) + params.uid);
 };