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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 { HttpEvent, HttpHandler, HttpInterceptor, HttpRequest } from '@angular/common/http';
import { Injectable } from '@angular/core';
import { Observable, throwError, TimeoutError } from 'rxjs';
import { catchError } from 'rxjs/operators';
import { AlertService } from '../modules/alerting';
import { TranslateService } from '@ngx-translate/core';
import { Problem } from '../../../openapi/output';
import { Router } from '@angular/router';
import { DEFAULT_TIMEOUT } from './timeout.interceptor';
/**
* This class adds global handling of http-request related errors
*/
export enum RequestMethod {
DELETE = 'DELETE',
POST = 'POST',
GET = 'GET',
}
interface ProblemDetail {
errorDetail: Problem;
requestId?: string;
urlTree: string[];
}
@Injectable()
export class HttpErrorInterceptor implements HttpInterceptor {
errorDetail!: Problem;
constructor(private alertService: AlertService, private translateService: TranslateService, private router: Router) {}
intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
return next.handle(request).pipe(
catchError(rsp => {
const urlTree = this.router.url.split('/');
this.errorDetail = this.createErrorDetail(rsp);
const requestId = request.headers.get('x-request-id') || undefined;
const detail: ProblemDetail = {
errorDetail: this.errorDetail,
requestId,
urlTree,
};
if (request.url.includes('onap_logging')) {
this.alertService.warn(this.translateService.instant('common.block.logging'), {
id: 'onap_logging',
});
return throwError(this.errorDetail);
}
if (request.method === RequestMethod.POST && request.url.includes('keycloak')) {
this.alertService.error(this.translateService.instant('common.block.authorization'), {
id: 'keycloak',
});
return throwError(this.errorDetail);
}
if (request.url.includes('preferences')) {
this.getPreferenceMessage(request, detail);
return throwError(this.errorDetail);
}
if (request.url.includes('actions')) {
this.getActionMessage(request, detail);
return throwError(this.errorDetail);
}
switch (urlTree[1].split('?')[0]) {
case 'user-administration':
this.getUserAdministrationMessage(request, detail, urlTree);
break;
case 'dashboard':
this.getErrorMessage('dashboard', detail);
break;
case 'app-starter':
this.getErrorMessage('appStarter', detail);
break;
default:
this.getErrorMessage('defaultMessage', detail);
break;
}
return throwError(this.errorDetail);
}),
);
}
private getUserAdministrationMessage(request: HttpRequest<any>, detail: ProblemDetail, urlTree: string[]) {
if (request.method === RequestMethod.DELETE) {
return this.getErrorMessage('userAdministration.delete', detail);
}
if (urlTree.includes('create')) {
return this.getErrorMessage('userAdministration.create', detail);
}
if (urlTree.includes('edit')) {
return this.getErrorMessage('userAdministration.edit', detail);
}
}
private getActionMessage(request: HttpRequest<any>, detail: ProblemDetail) {
if (request.method === RequestMethod.POST) {
return this.getErrorMessage('saveAction', detail);
}
this.getErrorMessage('loadAction', detail);
}
private getPreferenceMessage(request: HttpRequest<any>, detail: ProblemDetail) {
if (request.method === RequestMethod.POST) {
return this.getErrorMessage('savePreferences', detail);
}
this.getErrorMessage('loadPreferences', detail);
}
private createErrorDetail(response: any): Problem {
if (response instanceof TimeoutError) {
return {
detail: this.translateService.instant('common.block.timeout', { value: DEFAULT_TIMEOUT / 1000 }),
title: response.name,
status: 408,
};
}
return response.error ? response.error : response;
}
private getErrorMessage(type: string, detail: ProblemDetail) {
this.alertService.error(`${this.translateService.instant('common.block.' + type)}`, detail);
}
}
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