angular-docs-cn/public/docs/_examples/router/ts/app/auth-guard.service.ts
2016-08-09 11:48:07 -07:00

34 lines
1.0 KiB
TypeScript
Executable File

// #docregion
import { Injectable } from '@angular/core';
import { CanActivate, Router,
ActivatedRouteSnapshot,
RouterStateSnapshot,
NavigationExtras } 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) {
if (this.authService.isLoggedIn) { return true; }
// Store the attempted URL for redirecting
this.authService.redirectUrl = state.url;
// Create a dummy session id
let sessionId = 123456789;
// Set our navigation extras object
// that contains our global query params and fragment
let navigationExtras: NavigationExtras = {
queryParams: { 'session_id': sessionId },
fragment: 'anchor'
};
// Navigate to the login page with extras
this.router.navigate(['/login'], navigationExtras);
return false;
}
}