permission.js
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import { getToken } from "@/utils/auth"; // get token from cookie
import getPageTitle from "@/utils/get-page-title";
import { Message } from "element-ui";
import NProgress from "nprogress"; // progress bar
import "nprogress/nprogress.css"; // progress bar style
import router from "./router";
import store from "./store";
NProgress.configure({ showSpinner: false }); // NProgress Configuration
const whiteList = ["/login"]; // no redirect whitelist
router.beforeEach(async (to, from, next) => {
// start progress bar
NProgress.start();
// set page title
document.title = getPageTitle(to.meta.title);
// debugger
// determine whether the user has logged in
const hasToken = getToken();
if (hasToken) {
if (to.path === "/login") {
// if is logged in, redirect to the home page
next({ path: "/" });
NProgress.done();
} else {
const hasGetUserInfo = store.getters.name;
if (hasGetUserInfo) {
next();
} else {
try {
// get user info
// await store.dispatch('user/getInfo')
next();
} catch (error) {
// remove token and go to login page to re-login
await store.dispatch("user/resetToken");
Message.error(error || "Has Error");
next(`/login?redirect=${to.path}`);
NProgress.done();
}
}
}
} else {
/* has no token*/
if (whiteList.indexOf(to.path) !== -1) {
// in the free login whitelist, go directly
next();
} else {
// other pages that do not have permission to access are redirected to the login page.
next(`/login?redirect=${to.path}`);
NProgress.done();
}
}
});
router.afterEach(() => {
// finish progress bar
NProgress.done();
});