新增音乐sdk初始化方法

src/renderer/utils/music/kw/util.js

@@ -1,14 +1,30 @@
 import { httpGet } from '../../request'
 
+if (!window.kw_token) {
+  window.kw_token = {
+    token: null,
+    isGetingToken: false,
+  }
+}
+
 export const formatSinger = rawData => rawData.replace(/&/g, '、')
 
-export const matchToken = headers => headers['set-cookie'][0].match(/kw_token=(\w+)/)[1]
+export const matchToken = headers => {
+  try {
+    return headers['set-cookie'][0].match(/kw_token=(\w+)/)[1]
+  } catch (err) {
+    return null
+  }
+}
 
 export const getToken = () => new Promise((resolve, reject) => {
+  if (window.kw_token.isGetingToken) reject(new Error('正在获取token'))
+  window.kw_token.isGetingToken = true
   httpGet('http://www.kuwo.cn', (err, resp) => {
+    window.kw_token.isGetingToken = false
     if (err) return reject(err)
     if (resp.statusCode != 200) return reject(new Error('获取失败'))
-    const token = matchToken(resp.headers)
+    const token = window.kw_token.token = matchToken(resp.headers)
     resolve(token)
   })
 })