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/*
* Copyright (c) 2022. Deutsche Telekom AG
*
* 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.
*
* SPDX-License-Identifier: Apache-2.0
*/
import { Inject, Injectable } from '@angular/core';
import { ActivatedRouteSnapshot, CanActivate, Router, UrlTree } from '@angular/router';
import { Observable } from 'rxjs';
import { HttpClient } from '@angular/common/http';
import { ACL_CONFIG, AclConfig } from '../modules/auth/injection-tokens';
import { AuthService } from '../services/auth.service';
import { TranslateService } from '@ngx-translate/core';
import { map } from 'rxjs/operators';
@Injectable({
providedIn: 'root',
})
export class HasPermissionsGuard implements CanActivate {
constructor(
private readonly authService: AuthService,
private readonly httpClient: HttpClient,
private readonly router: Router,
private readonly translateService: TranslateService,
@Inject(ACL_CONFIG) readonly acl: AclConfig,
) {}
canActivate(
next: ActivatedRouteSnapshot,
): Observable<boolean | UrlTree> | Promise<boolean | UrlTree> | boolean | UrlTree {
return this.authService.loadCachedUserProfile().pipe(
map(userProfile => {
// filter out the keys (the onap_ roles) that the user does not have
const intersectionOfRoles = Object.keys(this.acl).filter(role => userProfile?.roles.includes(role));
return this.hasPermissions(next.data.permission, intersectionOfRoles);
}));
}
/**
* Check if a user has a given permission.
* @param permission the permission, as defined in the acl.json
* @param roles the roles that the user possesses
* @returns true if the user has the needed permission
*/
private hasPermissions(permission: string, roles: string[]) {
for (const role of roles) {
if (this.acl[role].includes(permission)) {
return true;
}
}
this.router.navigate(['/statusPage'], {
state: {
header: this.translateService.instant('common.noPermissions.noPermissions'),
message: this.translateService.instant('common.noPermissions.support'),
},
});
return false;
}
}
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