import { asyncRouterMap, constantRouterMap } from '@/router'
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/**
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* 通过meta.perms判断是否与当前用户权限匹配
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* @param perms
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* @param route
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*/
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function hasPermission(perms, route) {
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if (route.meta && route.meta.perms) {
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return perms.some(perm => route.meta.perms.includes(perm))
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} else {
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return true
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}
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}
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/**
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* 递归过滤异步路由表，返回符合用户角色权限的路由表
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* @param routes asyncRouterMap
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* @param perms
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*/
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function filterAsyncRouter(routes, perms) {
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const res = []
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routes.forEach(route => {
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const tmp = { ...route }
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if (tmp.children) {
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tmp.children = filterAsyncRouter(tmp.children, perms)
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if (tmp.children && tmp.children.length > 0) {
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res.push(tmp)
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}
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} else {
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if (hasPermission(perms, tmp)) {
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res.push(tmp)
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}
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}
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})
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return res
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}
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const permission = {
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state: {
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routers: constantRouterMap,
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addRouters: []
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},
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mutations: {
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SET_ROUTERS: (state, routers) => {
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state.addRouters = routers
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state.routers = constantRouterMap.concat(routers)
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}
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},
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actions: {
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GenerateRoutes({ commit }, data) {
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return new Promise(resolve => {
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const { perms } = data
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let accessedRouters
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if (perms.includes('*')) {
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accessedRouters = asyncRouterMap
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} else {
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accessedRouters = filterAsyncRouter(asyncRouterMap, perms)
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}
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commit('SET_ROUTERS', accessedRouters)
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resolve()
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})
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}
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}
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}
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export default permission
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