| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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, CanActivateChild, Router, RouterStateSnapshot} from '@angular/router'; |
| import {Observable} from 'rxjs/Observable'; |
| import {FimsPermission} from './fims-permission.model'; |
| import {Store} from '@ngrx/store'; |
| import * as fromRoot from '../../../store'; |
| |
| @Injectable() |
| export class PermissionGuard implements CanActivateChild { |
| |
| constructor(private store: Store<fromRoot.State>, private router: Router) { |
| } |
| |
| waitForPermissions(): Observable<boolean> { |
| return this.store.select(fromRoot.getPermissionsLoading) |
| .filter(loading => !loading) |
| .take(1); |
| } |
| |
| canActivateChild(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> { |
| const routeData: any = route.data; |
| |
| const routePermission: FimsPermission = routeData.hasPermission; |
| |
| // No permission set on route at all |
| if (!routePermission) { |
| return Observable.of(true); |
| } |
| |
| return this.waitForPermissions() |
| .switchMap(() => this.hasPermission(routePermission) |
| .map(hasPermission => { |
| if (hasPermission) { |
| return true; |
| } |
| this.router.navigate(['/denied']); |
| return false; |
| })); |
| |
| } |
| |
| private hasPermission(routePermission: FimsPermission): Observable<boolean> { |
| return this.store.select(fromRoot.getPermissions) |
| .map(permissions => permissions.filter(permission => permission.id === routePermission.id |
| && permission.accessLevel === routePermission.accessLevel)) |
| .map(matches => matches.length > 0) |
| .take(1); |
| } |
| } |