alfresco-ng2-components/lib/core/services/auth-guard.service.ts

/*!
 * @license
 * Copyright 2016 Alfresco Software, Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { Injectable } from '@angular/core';
import {
  ActivatedRouteSnapshot, CanActivate, CanActivateChild,
  Router,
  RouterStateSnapshot
} from '@angular/router';

import { AuthenticationService } from './authentication.service';

@Injectable()
export class AuthGuard implements CanActivate, CanActivateChild {
    constructor(private authService: AuthenticationService, private router: Router) {}

    canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
        const redirectUrl = state.url;

        return this.checkLogin(redirectUrl);
    }

    canActivateChild(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): boolean {
        return this.canActivate(route, state);
    }

    checkLogin(redirectUrl: string): boolean {
        if (this.authService.isLoggedIn()) {
            return true;
        }

        this.authService.setRedirectUrl(redirectUrl);

        this.router.navigate(['/login']);
        return false;
    }
}