eladmin 1.0 版本发布

src/permission.js

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+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 } from '@/utils/auth' // getToken from cookie
+import { buildMenus } from '@/api/menu'
+import { filterAsyncRouter } from './store/modules/permission'
+
+NProgress.configure({ showSpinner: false })// NProgress Configuration
+
+const whiteList = ['/login']// no redirect whitelist
+
+// auth judge function
+function hasPermission(roles, permissionRoles) {
+  if (roles.indexOf('ADMIN') >= 0) return true // admin auth passed directly
+  if (!permissionRoles) return true
+  return roles.some(role => permissionRoles.indexOf(role) >= 0)
+}
+
+router.beforeEach((to, from, next) => {
+  NProgress.start() // start progress bar
+  if (getToken()) { // determine if there has token
+    /* has token*/
+    if (to.path === '/login') {
+      next({ path: '/' })
+      NProgress.done() // if current page is dashboard will not trigger	afterEach hook, so manually handle it
+    } else {
+      if (store.getters.roles.length === 0) { // 判断当前用户是否已拉取完user_info信息
+        store.dispatch('GetInfo').then(res => { // 拉取user_info
+          buildMenus().then(res => {
+            const asyncRouter = filterAsyncRouter(res)
+            asyncRouter.push({ path: '*', redirect: '/404', hidden: true })
+            store.dispatch('GenerateRoutes', asyncRouter).then(() => { // 存储路由
+              console.log(asyncRouter)
+              router.addRoutes(asyncRouter) // 动态添加可访问路由表
+              next({ ...to, replace: true })// hack方法 确保addRoutes已完成
+            })
+          })
+        }).catch((err) => {
+          store.dispatch('LogOut').then(() => {
+            Message.error(err || 'Verification failed, please login again')
+            next({ path: '/' })
+          })
+        })
+      } else {
+        // 没有动态改变权限的需求可直接next() 删除下方权限判断 ↓
+        if (hasPermission(store.getters.roles, to.meta.roles)) {
+          next()
+        } else {
+          next({ path: '/401', replace: true, query: { noGoBack: true }})
+        }
+      }
+    }
+  } else {
+    /* has no token*/
+    if (whiteList.indexOf(to.path) !== -1) { // 在免登录白名单，直接进入
+      next()
+    } else {
+      next(`/login?redirect=${to.path}`) // 否则全部重定向到登录页
+      NProgress.done()
+    }
+  }
+})
+
+router.afterEach(() => {
+  NProgress.done() // finish progress bar
+})