GCLS_Page_Book/src/permission.js

import router from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken, removeToken, getConfig } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login', '/BookBrowsing'] // no redirect whitelist

router.beforeEach(async(to, from, next) => {
  // start progress bar
  NProgress.start()
  // set page title
  document.title = getPageTitle(to.meta.title)
  // next();
  NProgress.done()
  const hasToken = getToken()
  if (hasToken || to.path === '/BookBrowsing' || to.path === '/courseview' || to.path === '/Integration/Courseware') {
    const config = getConfig()
    if (config || to.path === '/BookBrowsing' || to.path === '/courseview' || to.path === '/Integration/Courseware') {
      if (to.path === '/login') {
        // if is logged in, redirect to the home page
        next({ path: '/EnterSys' })
        NProgress.done()
      } else {
        try {
          next()
        } catch (error) {
          Message.error(error || 'Has Error')
          // next(`/login?redirect=${to.path}`)
          if (process.env.NODE_ENV == 'development') {
            next(`/login?redirect=${to.path}`)
          } else {
            window.location.href = '/'
          }
          NProgress.done()
        }
      }
    } else {
      removeToken()
      // next(`/login?redirect=${to.path}`)
      if (process.env.NODE_ENV == 'development') {
        next(`/login?redirect=${to.path}`)
      } else {
        window.location.href = '/'
      }
      NProgress.done()
    }
  } else {
    /* has no token*/
    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next()
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      // next(`/login?redirect=${to.path}`)
      if (process.env.NODE_ENV == 'development') {
        next(`/login?redirect=${to.path}`)
      } else {
        window.location.href = '/'
      }
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})