| /*************************************************************************** |
| |
| Copyright (c) 2019, EPAM SYSTEMS INC |
| |
| 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 { |
| HttpInterceptor, |
| HttpRequest, |
| HttpHandler, |
| HttpEvent |
| } from '@angular/common/http'; |
| |
| import { Observable, throwError, of as observableOf } from 'rxjs'; |
| import { map, catchError } from 'rxjs/operators'; |
| |
| import { StorageService, AppRoutingService } from '../services'; |
| import { HTTP_STATUS_CODES } from '../util'; |
| |
| @Injectable() export class ErrorInterceptor implements HttpInterceptor { |
| constructor( |
| private jwtService: StorageService, |
| private routingService: AppRoutingService |
| ) {} |
| |
| intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> { |
| return next.handle(request).pipe( |
| catchError(error => { |
| let url = error.url; |
| |
| if (url.indexOf('?') > -1) { |
| url = url.substr(0, url.indexOf('?')); |
| } |
| |
| if ((error.status === HTTP_STATUS_CODES.UNAUTHORIZED) && !url.endsWith('login')) { |
| this.jwtService.destroyToken(); |
| this.routingService.redirectToLoginPage(); |
| return observableOf(error); |
| } else { |
| return throwError(error); |
| } |
| })); |
| } |
| } |