angular-docs-cn/public/docs/_examples/router/ts/app/auth-guard.service.3.ts

41 lines
1.1 KiB
TypeScript

// #docplaster
// #docregion
// #docregion can-activate-child
import { Injectable } from '@angular/core';
import {
CanActivate, Router,
ActivatedRouteSnapshot,
RouterStateSnapshot,
CanActivateChild
} from '@angular/router';
import { AuthService } from './auth.service';
@Injectable()
export class AuthGuard implements CanActivate, CanActivateChild {
constructor(private authService: AuthService, private router: Router) {}
canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
let url: string = state.url;
return this.checkLogin(url);
}
canActivateChild(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
return this.canActivate(route, state);
}
// #enddocregion can-activate-child
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
this.router.navigate(['/login']);
return false;
}
// #docregion can-activate-child
}
// #enddocregion