angular-docs-cn/public/docs/_examples/router/ts/app/auth-guard.service.2.ts

38 lines
980 B
TypeScript

// #docregion
import { Injectable } from '@angular/core';
import {
CanActivate, Router,
ActivatedRouteSnapshot,
RouterStateSnapshot
} from '@angular/router';
import { AuthService } from './auth.service';
@Injectable()
export class AuthGuard implements CanActivate {
constructor(private authService: AuthService, private router: Router) {}
canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
let url: string = state.url;
return this.checkLogin(url);
}
checkLogin(url: string): boolean {
if (this.authService.isLoggedIn) { return true; }
// Store the attempted URL for redirecting
this.authService.redirectUrl = url;
// Navigate to the login page with extras
this.router.navigate(['/login']);
return false;
}
}
// #enddocregion
/*
// #docregion can-load-interface
export class AuthGuard implements CanActivate, CanLoad {
// #enddocregion can-load-interface
*/