import {Injectable} from '@angular/core'; import {HttpClient} from '@angular/common/http'; import {BehaviorSubject, from, Observable} from "rxjs"; import {COOKIE, Session, User} from "../login/utils/helper.class"; import {map} from "rxjs/operators"; import {NavigationEnd, Router} from "@angular/router"; import {properties} from "../../../environments/environment"; import {StringUtils} from "../utils/string-utils.class"; import {CustomOptions} from "./servicesUtils/customOptions.class"; import {AdvancedAsyncSubject} from "../utils/AdvancedAsyncSubject"; @Injectable({ providedIn: 'root' }) export class UserManagementService { private getUserInfoSubject: AdvancedAsyncSubject | BehaviorSubject; public fixRedirectURL: string = null; private redirectUrl: string = null; private readonly promise: Promise; sub; routeSub; constructor(private http: HttpClient, private router: Router) { if(properties.environment === "development") { this.getUserInfoSubject = new AdvancedAsyncSubject(); } else { this.getUserInfoSubject = new BehaviorSubject(null) } this.promise = new Promise((resolve => { this.updateUserInfo(resolve); })); this.routeSub = this.router.events.subscribe(event => { if (event instanceof NavigationEnd) { const token = COOKIE.getCookie('AccessToken'); if (!token && this.getUserInfoSubject.getValue() !== null) { this.getUserInfoSubject.next(null); } } }); } clearSubscriptions() { if (this.routeSub) { this.routeSub.unsubscribe(); } if (this.sub) { this.sub.unsubscribe(); } } public getUserInfo(subject: boolean = true): Observable { if (subject) { return this.getUserInfoSubject.asObservable(); } else { return from(this.getUserInfoAsync()); } } public updateUserInfo(resolve: Function = null) { const token = COOKIE.getCookie('AccessToken'); if (!token) { this.getUserInfoSubject.next(null); if (resolve) { resolve(); } } else { let userInfoUrl = (properties.userInfoUrl.includes("accessToken")?(properties.userInfoUrl + token):properties.userInfoUrl); this.sub = this.http.get(userInfoUrl, CustomOptions.registryOptions()).pipe(map(userInfo => { return this.parseUserInfo(userInfo); })).subscribe(user => { this.getUserInfoSubject.next(user); if (resolve) { resolve(); } }, error => { if(this.getUserInfoSubject.getValue() || this.getUserInfoSubject instanceof AdvancedAsyncSubject) { this.getUserInfoSubject.next(null); } if (resolve) { resolve(); } }); } } private async getUserInfoAsync(): Promise { await this.promise; if (this.sub) { this.sub.unsubscribe(); } return this.getUserInfoSubject.getValue(); } private parseUserInfo(info: any) { const user: User = new User(); user.id = (info.sub && info.sub.indexOf('@')) ? info.sub.substring(0, info.sub.indexOf('@')) : info.sub; user.firstname = (info.given_name) ? info.given_name : ""; user.lastname = (info.family_name) ? info.family_name : ""; user.email = info.email.toLowerCase(); // TODO remove, is a quick fix user.fullname = (info.name) ? info.name : ""; if (user.fullname == "") { if (user.firstname != "") { user.fullname += user.firstname; } if (user.lastname != "") { user.fullname += user.lastname; } if (user.fullname == "") { //fullname is still empty set a default user.fullname = "Anonymous user"; } } user.role = []; if (info.roles) { info.roles.forEach(role => { user.role.push(role); }); } else { if (info.edu_person_entitlements) { user.role = info.edu_person_entitlements; } } user.expirationDate = info.exp_date; return user; } public setRedirectUrl(url: string = null) { if (url) { let parts = url.split('?'); let path = properties.baseLink + parts[0]; let params = null; if (parts.length == 2) { params = parts[1]; } let hash = path.indexOf("#"); let fragment = (hash !== -1) ? path.slice(hash + 1) : null; if (fragment) { path = path.slice(0, hash); } else { fragment = ""; } if (!path.includes('/reload')) { Session.setReloadUrl(location.protocol + "//" + location.host, path, params, fragment); } this.redirectUrl = StringUtils.URIEncode(location.protocol + "//" + location.host + this.fixRedirectURL); } else { this.redirectUrl = StringUtils.URIEncode(location.href); Session.setReloadUrl(location.protocol + "//" + location.host, location.pathname, location.search, location.hash); } } public login() { if (this.fixRedirectURL) { this.setRedirectUrl(this.fixRedirectURL); } else { this.setRedirectUrl(); } window.location.href = properties.loginUrl + "?redirect=" + this.redirectUrl; } public logout() { this.setRedirectUrl(); Session.removeUser(); if (properties.logoutUrl.includes('openid_logout')) { window.location.href = properties.logoutUrl + "?redirect=" + this.redirectUrl; } else { window.location.href = properties.logoutUrl + StringUtils.URIEncode(location.href); } } }