welfare-admin/src/permission.js

import router from './router'
import store from './store'
import storage from 'store'
import NProgress from 'nprogress' // progress bar
import '@/components/NProgress/nprogress.less' // progress bar custom style
import { setDocumentTitle, domTitle } from '@/utils/domUtil'
import { LOGIN_TOKEN } from '@/store/mutation-types'
import { i18nRender } from '@/locales'

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

const whiteList = ['login'] // no redirect whitelist
const loginRoutePath = '/user/login'
const defaultRoutePath = '/dashboard/workplace'

router.beforeEach((to, from, next) => {
  NProgress.start() // start progress bar
  to.meta && (typeof to.meta.title !== 'undefined' && setDocumentTitle(`${i18nRender(to.meta.title)} - ${domTitle}`))
  if (storage.get(LOGIN_TOKEN)) {
    if (to.path === loginRoutePath) {
      next({ path: defaultRoutePath })
      NProgress.done()
    } else {
      if (store.getters.addRouters.length === 0) {
        store.dispatch('GenerateRoutes').then(() => {
          router.addRoutes(store.getters.addRouters)
          const redirect = decodeURIComponent(from.query.redirect || to.path)
          if (to.path === redirect) {
            next({ ...to, replace: true })
          } else {
            next({ path: redirect })
          }
        }, () => {
          NProgress.done()
        })
      } else {
        next()
      }
    }
  } else {
    if (whiteList.includes(to.name)) {
      next()
    } else {
      next({ path: loginRoutePath, query: { redirect: to.fullPath } })
      NProgress.done() // if current page is login will not trigger afterEach hook, so manually handle it
    }
  }
})

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