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1import { Injectable, Optional, Inject } from '@angular/core';
2import { HttpHeaders, HttpParams, } from '@angular/common/http';
3import { Subject, of, race, from, combineLatest, throwError, } from 'rxjs';
4import { filter, delay, first, tap, map, switchMap, debounceTime, catchError, } from 'rxjs/operators';
5import { DOCUMENT } from '@angular/common';
6import { OAuthInfoEvent, OAuthErrorEvent, OAuthSuccessEvent, } from './events';
7import { b64DecodeUnicode, base64UrlEncode } from './base64-helper';
8import { AuthConfig } from './auth.config';
9import { WebHttpUrlEncodingCodec } from './encoder';
10import * as i0 from "@angular/core";
11import * as i1 from "@angular/common/http";
12import * as i2 from "./types";
13import * as i3 from "./token-validation/validation-handler";
14import * as i4 from "./auth.config";
15import * as i5 from "./url-helper.service";
16import * as i6 from "./token-validation/hash-handler";
17import * as i7 from "./date-time-provider";
18/**
19 * Service for logging in and logging out with
20 * OIDC and OAuth2. Supports implicit flow and
21 * password flow.
22 */
23export class OAuthService extends AuthConfig {
24 constructor(ngZone, http, storage, tokenValidationHandler, config, urlHelper, logger, crypto, document, dateTimeService) {
25 super();
26 this.ngZone = ngZone;
27 this.http = http;
28 this.config = config;
29 this.urlHelper = urlHelper;
30 this.logger = logger;
31 this.crypto = crypto;
32 this.dateTimeService = dateTimeService;
33 /**
34 * @internal
35 * Deprecated: use property events instead
36 */
37 this.discoveryDocumentLoaded = false;
38 /**
39 * The received (passed around) state, when logging
40 * in with implicit flow.
41 */
42 this.state = '';
43 this.eventsSubject = new Subject();
44 this.discoveryDocumentLoadedSubject = new Subject();
45 this.grantTypesSupported = [];
46 this.inImplicitFlow = false;
47 this.saveNoncesInLocalStorage = false;
48 this.debug('angular-oauth2-oidc v10');
49 // See https://github.com/manfredsteyer/angular-oauth2-oidc/issues/773 for why this is needed
50 this.document = document;
51 if (!config) {
52 config = {};
53 }
54 this.discoveryDocumentLoaded$ =
55 this.discoveryDocumentLoadedSubject.asObservable();
56 this.events = this.eventsSubject.asObservable();
57 if (tokenValidationHandler) {
58 this.tokenValidationHandler = tokenValidationHandler;
59 }
60 if (config) {
61 this.configure(config);
62 }
63 try {
64 if (storage) {
65 this.setStorage(storage);
66 }
67 else if (typeof sessionStorage !== 'undefined') {
68 this.setStorage(sessionStorage);
69 }
70 }
71 catch (e) {
72 console.error('No OAuthStorage provided and cannot access default (sessionStorage).' +
73 'Consider providing a custom OAuthStorage implementation in your module.', e);
74 }
75 // in IE, sessionStorage does not always survive a redirect
76 if (this.checkLocalStorageAccessable()) {
77 const ua = window?.navigator?.userAgent;
78 const msie = ua?.includes('MSIE ') || ua?.includes('Trident');
79 if (msie) {
80 this.saveNoncesInLocalStorage = true;
81 }
82 }
83 this.setupRefreshTimer();
84 }
85 checkLocalStorageAccessable() {
86 if (typeof window === 'undefined')
87 return false;
88 const test = 'test';
89 try {
90 if (typeof window['localStorage'] === 'undefined')
91 return false;
92 localStorage.setItem(test, test);
93 localStorage.removeItem(test);
94 return true;
95 }
96 catch (e) {
97 return false;
98 }
99 }
100 /**
101 * Use this method to configure the service
102 * @param config the configuration
103 */
104 configure(config) {
105 // For the sake of downward compatibility with
106 // original configuration API
107 Object.assign(this, new AuthConfig(), config);
108 this.config = Object.assign({}, new AuthConfig(), config);
109 if (this.sessionChecksEnabled) {
110 this.setupSessionCheck();
111 }
112 this.configChanged();
113 }
114 configChanged() {
115 this.setupRefreshTimer();
116 }
117 restartSessionChecksIfStillLoggedIn() {
118 if (this.hasValidIdToken()) {
119 this.initSessionCheck();
120 }
121 }
122 restartRefreshTimerIfStillLoggedIn() {
123 this.setupExpirationTimers();
124 }
125 setupSessionCheck() {
126 this.events
127 .pipe(filter((e) => e.type === 'token_received'))
128 .subscribe(() => {
129 this.initSessionCheck();
130 });
131 }
132 /**
133 * Will setup up silent refreshing for when the token is
134 * about to expire. When the user is logged out via this.logOut method, the
135 * silent refreshing will pause and not refresh the tokens until the user is
136 * logged back in via receiving a new token.
137 * @param params Additional parameter to pass
138 * @param listenTo Setup automatic refresh of a specific token type
139 */
140 setupAutomaticSilentRefresh(params = {}, listenTo, noPrompt = true) {
141 let shouldRunSilentRefresh = true;
142 this.clearAutomaticRefreshTimer();
143 this.automaticRefreshSubscription = this.events
144 .pipe(tap((e) => {
145 if (e.type === 'token_received') {
146 shouldRunSilentRefresh = true;
147 }
148 else if (e.type === 'logout') {
149 shouldRunSilentRefresh = false;
150 }
151 }), filter((e) => e.type === 'token_expires' &&
152 (listenTo == null || listenTo === 'any' || e.info === listenTo)), debounceTime(1000))
153 .subscribe(() => {
154 if (shouldRunSilentRefresh) {
155 // this.silentRefresh(params, noPrompt).catch(_ => {
156 this.refreshInternal(params, noPrompt).catch(() => {
157 this.debug('Automatic silent refresh did not work');
158 });
159 }
160 });
161 this.restartRefreshTimerIfStillLoggedIn();
162 }
163 refreshInternal(params, noPrompt) {
164 if (!this.useSilentRefresh && this.responseType === 'code') {
165 return this.refreshToken();
166 }
167 else {
168 return this.silentRefresh(params, noPrompt);
169 }
170 }
171 /**
172 * Convenience method that first calls `loadDiscoveryDocument(...)` and
173 * directly chains using the `then(...)` part of the promise to call
174 * the `tryLogin(...)` method.
175 *
176 * @param options LoginOptions to pass through to `tryLogin(...)`
177 */
178 loadDiscoveryDocumentAndTryLogin(options = null) {
179 return this.loadDiscoveryDocument().then(() => {
180 return this.tryLogin(options);
181 });
182 }
183 /**
184 * Convenience method that first calls `loadDiscoveryDocumentAndTryLogin(...)`
185 * and if then chains to `initLoginFlow()`, but only if there is no valid
186 * IdToken or no valid AccessToken.
187 *
188 * @param options LoginOptions to pass through to `tryLogin(...)`
189 */
190 loadDiscoveryDocumentAndLogin(options = null) {
191 options = options || {};
192 return this.loadDiscoveryDocumentAndTryLogin(options).then(() => {
193 if (!this.hasValidIdToken() || !this.hasValidAccessToken()) {
194 const state = typeof options.state === 'string' ? options.state : '';
195 this.initLoginFlow(state);
196 return false;
197 }
198 else {
199 return true;
200 }
201 });
202 }
203 debug(...args) {
204 if (this.showDebugInformation) {
205 this.logger.debug(...args);
206 }
207 }
208 validateUrlFromDiscoveryDocument(url) {
209 const errors = [];
210 const httpsCheck = this.validateUrlForHttps(url);
211 const issuerCheck = this.validateUrlAgainstIssuer(url);
212 if (!httpsCheck) {
213 errors.push('https for all urls required. Also for urls received by discovery.');
214 }
215 if (!issuerCheck) {
216 errors.push('Every url in discovery document has to start with the issuer url.' +
217 'Also see property strictDiscoveryDocumentValidation.');
218 }
219 return errors;
220 }
221 validateUrlForHttps(url) {
222 if (!url) {
223 return true;
224 }
225 const lcUrl = url.toLowerCase();
226 if (this.requireHttps === false) {
227 return true;
228 }
229 if ((lcUrl.match(/^http:\/\/localhost($|[:/])/) ||
230 lcUrl.match(/^http:\/\/localhost($|[:/])/)) &&
231 this.requireHttps === 'remoteOnly') {
232 return true;
233 }
234 return lcUrl.startsWith('https://');
235 }
236 assertUrlNotNullAndCorrectProtocol(url, description) {
237 if (!url) {
238 throw new Error(`'${description}' should not be null`);
239 }
240 if (!this.validateUrlForHttps(url)) {
241 throw new Error(`'${description}' must use HTTPS (with TLS), or config value for property 'requireHttps' must be set to 'false' and allow HTTP (without TLS).`);
242 }
243 }
244 validateUrlAgainstIssuer(url) {
245 if (!this.strictDiscoveryDocumentValidation) {
246 return true;
247 }
248 if (!url) {
249 return true;
250 }
251 return url.toLowerCase().startsWith(this.issuer.toLowerCase());
252 }
253 setupRefreshTimer() {
254 if (typeof window === 'undefined') {
255 this.debug('timer not supported on this plattform');
256 return;
257 }
258 if (this.hasValidIdToken() || this.hasValidAccessToken()) {
259 this.clearAccessTokenTimer();
260 this.clearIdTokenTimer();
261 this.setupExpirationTimers();
262 }
263 if (this.tokenReceivedSubscription)
264 this.tokenReceivedSubscription.unsubscribe();
265 this.tokenReceivedSubscription = this.events
266 .pipe(filter((e) => e.type === 'token_received'))
267 .subscribe(() => {
268 this.clearAccessTokenTimer();
269 this.clearIdTokenTimer();
270 this.setupExpirationTimers();
271 });
272 }
273 setupExpirationTimers() {
274 if (this.hasValidAccessToken()) {
275 this.setupAccessTokenTimer();
276 }
277 if (!this.disableIdTokenTimer && this.hasValidIdToken()) {
278 this.setupIdTokenTimer();
279 }
280 }
281 setupAccessTokenTimer() {
282 const expiration = this.getAccessTokenExpiration();
283 const storedAt = this.getAccessTokenStoredAt();
284 const timeout = this.calcTimeout(storedAt, expiration);
285 this.ngZone.runOutsideAngular(() => {
286 this.accessTokenTimeoutSubscription = of(new OAuthInfoEvent('token_expires', 'access_token'))
287 .pipe(delay(timeout))
288 .subscribe((e) => {
289 this.ngZone.run(() => {
290 this.eventsSubject.next(e);
291 });
292 });
293 });
294 }
295 setupIdTokenTimer() {
296 const expiration = this.getIdTokenExpiration();
297 const storedAt = this.getIdTokenStoredAt();
298 const timeout = this.calcTimeout(storedAt, expiration);
299 this.ngZone.runOutsideAngular(() => {
300 this.idTokenTimeoutSubscription = of(new OAuthInfoEvent('token_expires', 'id_token'))
301 .pipe(delay(timeout))
302 .subscribe((e) => {
303 this.ngZone.run(() => {
304 this.eventsSubject.next(e);
305 });
306 });
307 });
308 }
309 /**
310 * Stops timers for automatic refresh.
311 * To restart it, call setupAutomaticSilentRefresh again.
312 */
313 stopAutomaticRefresh() {
314 this.clearAccessTokenTimer();
315 this.clearIdTokenTimer();
316 this.clearAutomaticRefreshTimer();
317 }
318 clearAccessTokenTimer() {
319 if (this.accessTokenTimeoutSubscription) {
320 this.accessTokenTimeoutSubscription.unsubscribe();
321 }
322 }
323 clearIdTokenTimer() {
324 if (this.idTokenTimeoutSubscription) {
325 this.idTokenTimeoutSubscription.unsubscribe();
326 }
327 }
328 clearAutomaticRefreshTimer() {
329 if (this.automaticRefreshSubscription) {
330 this.automaticRefreshSubscription.unsubscribe();
331 }
332 }
333 calcTimeout(storedAt, expiration) {
334 const now = this.dateTimeService.now();
335 const delta = (expiration - storedAt) * this.timeoutFactor - (now - storedAt);
336 const duration = Math.max(0, delta);
337 const maxTimeoutValue = 2147483647;
338 return duration > maxTimeoutValue ? maxTimeoutValue : duration;
339 }
340 /**
341 * DEPRECATED. Use a provider for OAuthStorage instead:
342 *
343 * { provide: OAuthStorage, useFactory: oAuthStorageFactory }
344 * export function oAuthStorageFactory(): OAuthStorage { return localStorage; }
345 * Sets a custom storage used to store the received
346 * tokens on client side. By default, the browser's
347 * sessionStorage is used.
348 * @ignore
349 *
350 * @param storage
351 */
352 setStorage(storage) {
353 this._storage = storage;
354 this.configChanged();
355 }
356 /**
357 * Loads the discovery document to configure most
358 * properties of this service. The url of the discovery
359 * document is infered from the issuer's url according
360 * to the OpenId Connect spec. To use another url you
361 * can pass it to to optional parameter fullUrl.
362 *
363 * @param fullUrl
364 */
365 loadDiscoveryDocument(fullUrl = null) {
366 return new Promise((resolve, reject) => {
367 if (!fullUrl) {
368 fullUrl = this.issuer || '';
369 if (!fullUrl.endsWith('/')) {
370 fullUrl += '/';
371 }
372 fullUrl += '.well-known/openid-configuration';
373 }
374 if (!this.validateUrlForHttps(fullUrl)) {
375 reject("issuer must use HTTPS (with TLS), or config value for property 'requireHttps' must be set to 'false' and allow HTTP (without TLS).");
376 return;
377 }
378 this.http.get(fullUrl).subscribe((doc) => {
379 if (!this.validateDiscoveryDocument(doc)) {
380 this.eventsSubject.next(new OAuthErrorEvent('discovery_document_validation_error', null));
381 reject('discovery_document_validation_error');
382 return;
383 }
384 this.loginUrl = doc.authorization_endpoint;
385 this.logoutUrl = doc.end_session_endpoint || this.logoutUrl;
386 this.grantTypesSupported = doc.grant_types_supported;
387 this.issuer = doc.issuer;
388 this.tokenEndpoint = doc.token_endpoint;
389 this.userinfoEndpoint =
390 doc.userinfo_endpoint || this.userinfoEndpoint;
391 this.jwksUri = doc.jwks_uri;
392 this.sessionCheckIFrameUrl =
393 doc.check_session_iframe || this.sessionCheckIFrameUrl;
394 this.discoveryDocumentLoaded = true;
395 this.discoveryDocumentLoadedSubject.next(doc);
396 this.revocationEndpoint =
397 doc.revocation_endpoint || this.revocationEndpoint;
398 if (this.sessionChecksEnabled) {
399 this.restartSessionChecksIfStillLoggedIn();
400 }
401 this.loadJwks()
402 .then((jwks) => {
403 const result = {
404 discoveryDocument: doc,
405 jwks: jwks,
406 };
407 const event = new OAuthSuccessEvent('discovery_document_loaded', result);
408 this.eventsSubject.next(event);
409 resolve(event);
410 return;
411 })
412 .catch((err) => {
413 this.eventsSubject.next(new OAuthErrorEvent('discovery_document_load_error', err));
414 reject(err);
415 return;
416 });
417 }, (err) => {
418 this.logger.error('error loading discovery document', err);
419 this.eventsSubject.next(new OAuthErrorEvent('discovery_document_load_error', err));
420 reject(err);
421 });
422 });
423 }
424 loadJwks() {
425 return new Promise((resolve, reject) => {
426 if (this.jwksUri) {
427 this.http.get(this.jwksUri).subscribe((jwks) => {
428 this.jwks = jwks;
429 // this.eventsSubject.next(
430 // new OAuthSuccessEvent('discovery_document_loaded')
431 // );
432 resolve(jwks);
433 }, (err) => {
434 this.logger.error('error loading jwks', err);
435 this.eventsSubject.next(new OAuthErrorEvent('jwks_load_error', err));
436 reject(err);
437 });
438 }
439 else {
440 resolve(null);
441 }
442 });
443 }
444 validateDiscoveryDocument(doc) {
445 let errors;
446 if (!this.skipIssuerCheck && doc.issuer !== this.issuer) {
447 this.logger.error('invalid issuer in discovery document', 'expected: ' + this.issuer, 'current: ' + doc.issuer);
448 return false;
449 }
450 errors = this.validateUrlFromDiscoveryDocument(doc.authorization_endpoint);
451 if (errors.length > 0) {
452 this.logger.error('error validating authorization_endpoint in discovery document', errors);
453 return false;
454 }
455 errors = this.validateUrlFromDiscoveryDocument(doc.end_session_endpoint);
456 if (errors.length > 0) {
457 this.logger.error('error validating end_session_endpoint in discovery document', errors);
458 return false;
459 }
460 errors = this.validateUrlFromDiscoveryDocument(doc.token_endpoint);
461 if (errors.length > 0) {
462 this.logger.error('error validating token_endpoint in discovery document', errors);
463 }
464 errors = this.validateUrlFromDiscoveryDocument(doc.revocation_endpoint);
465 if (errors.length > 0) {
466 this.logger.error('error validating revocation_endpoint in discovery document', errors);
467 }
468 errors = this.validateUrlFromDiscoveryDocument(doc.userinfo_endpoint);
469 if (errors.length > 0) {
470 this.logger.error('error validating userinfo_endpoint in discovery document', errors);
471 return false;
472 }
473 errors = this.validateUrlFromDiscoveryDocument(doc.jwks_uri);
474 if (errors.length > 0) {
475 this.logger.error('error validating jwks_uri in discovery document', errors);
476 return false;
477 }
478 if (this.sessionChecksEnabled && !doc.check_session_iframe) {
479 this.logger.warn('sessionChecksEnabled is activated but discovery document' +
480 ' does not contain a check_session_iframe field');
481 }
482 return true;
483 }
484 /**
485 * Uses password flow to exchange userName and password for an
486 * access_token. After receiving the access_token, this method
487 * uses it to query the userinfo endpoint in order to get information
488 * about the user in question.
489 *
490 * When using this, make sure that the property oidc is set to false.
491 * Otherwise stricter validations take place that make this operation
492 * fail.
493 *
494 * @param userName
495 * @param password
496 * @param headers Optional additional http-headers.
497 */
498 fetchTokenUsingPasswordFlowAndLoadUserProfile(userName, password, headers = new HttpHeaders()) {
499 return this.fetchTokenUsingPasswordFlow(userName, password, headers).then(() => this.loadUserProfile());
500 }
501 /**
502 * Loads the user profile by accessing the user info endpoint defined by OpenId Connect.
503 *
504 * When using this with OAuth2 password flow, make sure that the property oidc is set to false.
505 * Otherwise stricter validations take place that make this operation fail.
506 */
507 loadUserProfile() {
508 if (!this.hasValidAccessToken()) {
509 throw new Error('Can not load User Profile without access_token');
510 }
511 if (!this.validateUrlForHttps(this.userinfoEndpoint)) {
512 throw new Error("userinfoEndpoint must use HTTPS (with TLS), or config value for property 'requireHttps' must be set to 'false' and allow HTTP (without TLS).");
513 }
514 return new Promise((resolve, reject) => {
515 const headers = new HttpHeaders().set('Authorization', 'Bearer ' + this.getAccessToken());
516 this.http
517 .get(this.userinfoEndpoint, {
518 headers,
519 observe: 'response',
520 responseType: 'text',
521 })
522 .subscribe((response) => {
523 this.debug('userinfo received', JSON.stringify(response));
524 if (response.headers
525 .get('content-type')
526 .startsWith('application/json')) {
527 let info = JSON.parse(response.body);
528 const existingClaims = this.getIdentityClaims() || {};
529 if (!this.skipSubjectCheck) {
530 if (this.oidc &&
531 (!existingClaims['sub'] || info.sub !== existingClaims['sub'])) {
532 const err = 'if property oidc is true, the received user-id (sub) has to be the user-id ' +
533 'of the user that has logged in with oidc.\n' +
534 'if you are not using oidc but just oauth2 password flow set oidc to false';
535 reject(err);
536 return;
537 }
538 }
539 info = Object.assign({}, existingClaims, info);
540 this._storage.setItem('id_token_claims_obj', JSON.stringify(info));
541 this.eventsSubject.next(new OAuthSuccessEvent('user_profile_loaded'));
542 resolve({ info });
543 }
544 else {
545 this.debug('userinfo is not JSON, treating it as JWE/JWS');
546 this.eventsSubject.next(new OAuthSuccessEvent('user_profile_loaded'));
547 resolve(JSON.parse(response.body));
548 }
549 }, (err) => {
550 this.logger.error('error loading user info', err);
551 this.eventsSubject.next(new OAuthErrorEvent('user_profile_load_error', err));
552 reject(err);
553 });
554 });
555 }
556 /**
557 * Uses password flow to exchange userName and password for an access_token.
558 * @param userName
559 * @param password
560 * @param headers Optional additional http-headers.
561 */
562 fetchTokenUsingPasswordFlow(userName, password, headers = new HttpHeaders()) {
563 const parameters = {
564 username: userName,
565 password: password,
566 };
567 return this.fetchTokenUsingGrant('password', parameters, headers);
568 }
569 /**
570 * Uses a custom grant type to retrieve tokens.
571 * @param grantType Grant type.
572 * @param parameters Parameters to pass.
573 * @param headers Optional additional HTTP headers.
574 */
575 fetchTokenUsingGrant(grantType, parameters, headers = new HttpHeaders()) {
576 this.assertUrlNotNullAndCorrectProtocol(this.tokenEndpoint, 'tokenEndpoint');
577 /**
578 * A `HttpParameterCodec` that uses `encodeURIComponent` and `decodeURIComponent` to
579 * serialize and parse URL parameter keys and values.
580 *
581 * @stable
582 */
583 let params = new HttpParams({ encoder: new WebHttpUrlEncodingCodec() })
584 .set('grant_type', grantType)
585 .set('scope', this.scope);
586 if (this.useHttpBasicAuth) {
587 const header = btoa(`${this.clientId}:${this.dummyClientSecret}`);
588 headers = headers.set('Authorization', 'Basic ' + header);
589 }
590 if (!this.useHttpBasicAuth) {
591 params = params.set('client_id', this.clientId);
592 }
593 if (!this.useHttpBasicAuth && this.dummyClientSecret) {
594 params = params.set('client_secret', this.dummyClientSecret);
595 }
596 if (this.customQueryParams) {
597 for (const key of Object.getOwnPropertyNames(this.customQueryParams)) {
598 params = params.set(key, this.customQueryParams[key]);
599 }
600 }
601 // set explicit parameters last, to allow overwriting
602 for (const key of Object.keys(parameters)) {
603 params = params.set(key, parameters[key]);
604 }
605 headers = headers.set('Content-Type', 'application/x-www-form-urlencoded');
606 return new Promise((resolve, reject) => {
607 this.http
608 .post(this.tokenEndpoint, params, { headers })
609 .subscribe((tokenResponse) => {
610 this.debug('tokenResponse', tokenResponse);
611 this.storeAccessTokenResponse(tokenResponse.access_token, tokenResponse.refresh_token, tokenResponse.expires_in ||
612 this.fallbackAccessTokenExpirationTimeInSec, tokenResponse.scope, this.extractRecognizedCustomParameters(tokenResponse));
613 if (this.oidc && tokenResponse.id_token) {
614 this.processIdToken(tokenResponse.id_token, tokenResponse.access_token).then((result) => {
615 this.storeIdToken(result);
616 resolve(tokenResponse);
617 });
618 }
619 this.eventsSubject.next(new OAuthSuccessEvent('token_received'));
620 resolve(tokenResponse);
621 }, (err) => {
622 this.logger.error('Error performing ${grantType} flow', err);
623 this.eventsSubject.next(new OAuthErrorEvent('token_error', err));
624 reject(err);
625 });
626 });
627 }
628 /**
629 * Refreshes the token using a refresh_token.
630 * This does not work for implicit flow, b/c
631 * there is no refresh_token in this flow.
632 * A solution for this is provided by the
633 * method silentRefresh.
634 */
635 refreshToken() {
636 this.assertUrlNotNullAndCorrectProtocol(this.tokenEndpoint, 'tokenEndpoint');
637 return new Promise((resolve, reject) => {
638 let params = new HttpParams({ encoder: new WebHttpUrlEncodingCodec() })
639 .set('grant_type', 'refresh_token')
640 .set('scope', this.scope)
641 .set('refresh_token', this._storage.getItem('refresh_token'));
642 let headers = new HttpHeaders().set('Content-Type', 'application/x-www-form-urlencoded');
643 if (this.useHttpBasicAuth) {
644 const header = btoa(`${this.clientId}:${this.dummyClientSecret}`);
645 headers = headers.set('Authorization', 'Basic ' + header);
646 }
647 if (!this.useHttpBasicAuth) {
648 params = params.set('client_id', this.clientId);
649 }
650 if (!this.useHttpBasicAuth && this.dummyClientSecret) {
651 params = params.set('client_secret', this.dummyClientSecret);
652 }
653 if (this.customQueryParams) {
654 for (const key of Object.getOwnPropertyNames(this.customQueryParams)) {
655 params = params.set(key, this.customQueryParams[key]);
656 }
657 }
658 this.http
659 .post(this.tokenEndpoint, params, { headers })
660 .pipe(switchMap((tokenResponse) => {
661 if (this.oidc && tokenResponse.id_token) {
662 return from(this.processIdToken(tokenResponse.id_token, tokenResponse.access_token, true)).pipe(tap((result) => this.storeIdToken(result)), map(() => tokenResponse));
663 }
664 else {
665 return of(tokenResponse);
666 }
667 }))
668 .subscribe((tokenResponse) => {
669 this.debug('refresh tokenResponse', tokenResponse);
670 this.storeAccessTokenResponse(tokenResponse.access_token, tokenResponse.refresh_token, tokenResponse.expires_in ||
671 this.fallbackAccessTokenExpirationTimeInSec, tokenResponse.scope, this.extractRecognizedCustomParameters(tokenResponse));
672 this.eventsSubject.next(new OAuthSuccessEvent('token_received'));
673 this.eventsSubject.next(new OAuthSuccessEvent('token_refreshed'));
674 resolve(tokenResponse);
675 }, (err) => {
676 this.logger.error('Error refreshing token', err);
677 this.eventsSubject.next(new OAuthErrorEvent('token_refresh_error', err));
678 reject(err);
679 });
680 });
681 }
682 removeSilentRefreshEventListener() {
683 if (this.silentRefreshPostMessageEventListener) {
684 window.removeEventListener('message', this.silentRefreshPostMessageEventListener);
685 this.silentRefreshPostMessageEventListener = null;
686 }
687 }
688 setupSilentRefreshEventListener() {
689 this.removeSilentRefreshEventListener();
690 this.silentRefreshPostMessageEventListener = (e) => {
691 const message = this.processMessageEventMessage(e);
692 if (this.checkOrigin && e.origin !== location.origin) {
693 console.error('wrong origin requested silent refresh!');
694 }
695 this.tryLogin({
696 customHashFragment: message,
697 preventClearHashAfterLogin: true,
698 customRedirectUri: this.silentRefreshRedirectUri || this.redirectUri,
699 }).catch((err) => this.debug('tryLogin during silent refresh failed', err));
700 };
701 window.addEventListener('message', this.silentRefreshPostMessageEventListener);
702 }
703 /**
704 * Performs a silent refresh for implicit flow.
705 * Use this method to get new tokens when/before
706 * the existing tokens expire.
707 */
708 silentRefresh(params = {}, noPrompt = true) {
709 const claims = this.getIdentityClaims() || {};
710 if (this.useIdTokenHintForSilentRefresh && this.hasValidIdToken()) {
711 params['id_token_hint'] = this.getIdToken();
712 }
713 if (!this.validateUrlForHttps(this.loginUrl)) {
714 throw new Error("loginUrl must use HTTPS (with TLS), or config value for property 'requireHttps' must be set to 'false' and allow HTTP (without TLS).");
715 }
716 if (typeof this.document === 'undefined') {
717 throw new Error('silent refresh is not supported on this platform');
718 }
719 const existingIframe = this.document.getElementById(this.silentRefreshIFrameName);
720 if (existingIframe) {
721 this.document.body.removeChild(existingIframe);
722 }
723 this.silentRefreshSubject = claims['sub'];
724 const iframe = this.document.createElement('iframe');
725 iframe.id = this.silentRefreshIFrameName;
726 this.setupSilentRefreshEventListener();
727 const redirectUri = this.silentRefreshRedirectUri || this.redirectUri;
728 this.createLoginUrl(null, null, redirectUri, noPrompt, params).then((url) => {
729 iframe.setAttribute('src', url);
730 if (!this.silentRefreshShowIFrame) {
731 iframe.style['display'] = 'none';
732 }
733 this.document.body.appendChild(iframe);
734 });
735 const errors = this.events.pipe(filter((e) => e instanceof OAuthErrorEvent), first());
736 const success = this.events.pipe(filter((e) => e.type === 'token_received'), first());
737 const timeout = of(new OAuthErrorEvent('silent_refresh_timeout', null)).pipe(delay(this.silentRefreshTimeout));
738 return race([errors, success, timeout])
739 .pipe(map((e) => {
740 if (e instanceof OAuthErrorEvent) {
741 if (e.type === 'silent_refresh_timeout') {
742 this.eventsSubject.next(e);
743 }
744 else {
745 e = new OAuthErrorEvent('silent_refresh_error', e);
746 this.eventsSubject.next(e);
747 }
748 throw e;
749 }
750 else if (e.type === 'token_received') {
751 e = new OAuthSuccessEvent('silently_refreshed');
752 this.eventsSubject.next(e);
753 }
754 return e;
755 }))
756 .toPromise();
757 }
758 /**
759 * This method exists for backwards compatibility.
760 * {@link OAuthService#initLoginFlowInPopup} handles both code
761 * and implicit flows.
762 */
763 initImplicitFlowInPopup(options) {
764 return this.initLoginFlowInPopup(options);
765 }
766 initLoginFlowInPopup(options) {
767 options = options || {};
768 return this.createLoginUrl(null, null, this.silentRefreshRedirectUri, false, {
769 display: 'popup',
770 }).then((url) => {
771 return new Promise((resolve, reject) => {
772 /**
773 * Error handling section
774 */
775 const checkForPopupClosedInterval = 500;
776 let windowRef = null;
777 // If we got no window reference we open a window
778 // else we are using the window already opened
779 if (!options.windowRef) {
780 windowRef = window.open(url, 'ngx-oauth2-oidc-login', this.calculatePopupFeatures(options));
781 }
782 else if (options.windowRef && !options.windowRef.closed) {
783 windowRef = options.windowRef;
784 windowRef.location.href = url;
785 }
786 let checkForPopupClosedTimer;
787 const tryLogin = (hash) => {
788 this.tryLogin({
789 customHashFragment: hash,
790 preventClearHashAfterLogin: true,
791 customRedirectUri: this.silentRefreshRedirectUri,
792 }).then(() => {
793 cleanup();
794 resolve(true);
795 }, (err) => {
796 cleanup();
797 reject(err);
798 });
799 };
800 const checkForPopupClosed = () => {
801 if (!windowRef || windowRef.closed) {
802 cleanup();
803 reject(new OAuthErrorEvent('popup_closed', {}));
804 }
805 };
806 if (!windowRef) {
807 reject(new OAuthErrorEvent('popup_blocked', {}));
808 }
809 else {
810 checkForPopupClosedTimer = window.setInterval(checkForPopupClosed, checkForPopupClosedInterval);
811 }
812 const cleanup = () => {
813 window.clearInterval(checkForPopupClosedTimer);
814 window.removeEventListener('storage', storageListener);
815 window.removeEventListener('message', listener);
816 if (windowRef !== null) {
817 windowRef.close();
818 }
819 windowRef = null;
820 };
821 const listener = (e) => {
822 const message = this.processMessageEventMessage(e);
823 if (message && message !== null) {
824 window.removeEventListener('storage', storageListener);
825 tryLogin(message);
826 }
827 else {
828 console.log('false event firing');
829 }
830 };
831 const storageListener = (event) => {
832 if (event.key === 'auth_hash') {
833 window.removeEventListener('message', listener);
834 tryLogin(event.newValue);
835 }
836 };
837 window.addEventListener('message', listener);
838 window.addEventListener('storage', storageListener);
839 });
840 });
841 }
842 calculatePopupFeatures(options) {
843 // Specify an static height and width and calculate centered position
844 const height = options.height || 470;
845 const width = options.width || 500;
846 const left = window.screenLeft + (window.outerWidth - width) / 2;
847 const top = window.screenTop + (window.outerHeight - height) / 2;
848 return `location=no,toolbar=no,width=${width},height=${height},top=${top},left=${left}`;
849 }
850 processMessageEventMessage(e) {
851 let expectedPrefix = '#';
852 if (this.silentRefreshMessagePrefix) {
853 expectedPrefix += this.silentRefreshMessagePrefix;
854 }
855 if (!e || !e.data || typeof e.data !== 'string') {
856 return;
857 }
858 const prefixedMessage = e.data;
859 if (!prefixedMessage.startsWith(expectedPrefix)) {
860 return;
861 }
862 return '#' + prefixedMessage.substr(expectedPrefix.length);
863 }
864 canPerformSessionCheck() {
865 if (!this.sessionChecksEnabled) {
866 return false;
867 }
868 if (!this.sessionCheckIFrameUrl) {
869 console.warn('sessionChecksEnabled is activated but there is no sessionCheckIFrameUrl');
870 return false;
871 }
872 const sessionState = this.getSessionState();
873 if (!sessionState) {
874 console.warn('sessionChecksEnabled is activated but there is no session_state');
875 return false;
876 }
877 if (typeof this.document === 'undefined') {
878 return false;
879 }
880 return true;
881 }
882 setupSessionCheckEventListener() {
883 this.removeSessionCheckEventListener();
884 this.sessionCheckEventListener = (e) => {
885 const origin = e.origin.toLowerCase();
886 const issuer = this.issuer.toLowerCase();
887 this.debug('sessionCheckEventListener');
888 if (!issuer.startsWith(origin)) {
889 this.debug('sessionCheckEventListener', 'wrong origin', origin, 'expected', issuer, 'event', e);
890 return;
891 }
892 // only run in Angular zone if it is 'changed' or 'error'
893 switch (e.data) {
894 case 'unchanged':
895 this.ngZone.run(() => {
896 this.handleSessionUnchanged();
897 });
898 break;
899 case 'changed':
900 this.ngZone.run(() => {
901 this.handleSessionChange();
902 });
903 break;
904 case 'error':
905 this.ngZone.run(() => {
906 this.handleSessionError();
907 });
908 break;
909 }
910 this.debug('got info from session check inframe', e);
911 };
912 // prevent Angular from refreshing the view on every message (runs in intervals)
913 this.ngZone.runOutsideAngular(() => {
914 window.addEventListener('message', this.sessionCheckEventListener);
915 });
916 }
917 handleSessionUnchanged() {
918 this.debug('session check', 'session unchanged');
919 this.eventsSubject.next(new OAuthInfoEvent('session_unchanged'));
920 }
921 handleSessionChange() {
922 this.eventsSubject.next(new OAuthInfoEvent('session_changed'));
923 this.stopSessionCheckTimer();
924 if (!this.useSilentRefresh && this.responseType === 'code') {
925 this.refreshToken()
926 .then(() => {
927 this.debug('token refresh after session change worked');
928 })
929 .catch(() => {
930 this.debug('token refresh did not work after session changed');
931 this.eventsSubject.next(new OAuthInfoEvent('session_terminated'));
932 this.logOut(true);
933 });
934 }
935 else if (this.silentRefreshRedirectUri) {
936 this.silentRefresh().catch(() => this.debug('silent refresh failed after session changed'));
937 this.waitForSilentRefreshAfterSessionChange();
938 }
939 else {
940 this.eventsSubject.next(new OAuthInfoEvent('session_terminated'));
941 this.logOut(true);
942 }
943 }
944 waitForSilentRefreshAfterSessionChange() {
945 this.events
946 .pipe(filter((e) => e.type === 'silently_refreshed' ||
947 e.type === 'silent_refresh_timeout' ||
948 e.type === 'silent_refresh_error'), first())
949 .subscribe((e) => {
950 if (e.type !== 'silently_refreshed') {
951 this.debug('silent refresh did not work after session changed');
952 this.eventsSubject.next(new OAuthInfoEvent('session_terminated'));
953 this.logOut(true);
954 }
955 });
956 }
957 handleSessionError() {
958 this.stopSessionCheckTimer();
959 this.eventsSubject.next(new OAuthInfoEvent('session_error'));
960 }
961 removeSessionCheckEventListener() {
962 if (this.sessionCheckEventListener) {
963 window.removeEventListener('message', this.sessionCheckEventListener);
964 this.sessionCheckEventListener = null;
965 }
966 }
967 initSessionCheck() {
968 if (!this.canPerformSessionCheck()) {
969 return;
970 }
971 const existingIframe = this.document.getElementById(this.sessionCheckIFrameName);
972 if (existingIframe) {
973 this.document.body.removeChild(existingIframe);
974 }
975 const iframe = this.document.createElement('iframe');
976 iframe.id = this.sessionCheckIFrameName;
977 this.setupSessionCheckEventListener();
978 const url = this.sessionCheckIFrameUrl;
979 iframe.setAttribute('src', url);
980 iframe.style.display = 'none';
981 this.document.body.appendChild(iframe);
982 this.startSessionCheckTimer();
983 }
984 startSessionCheckTimer() {
985 this.stopSessionCheckTimer();
986 this.ngZone.runOutsideAngular(() => {
987 this.sessionCheckTimer = setInterval(this.checkSession.bind(this), this.sessionCheckIntervall);
988 });
989 }
990 stopSessionCheckTimer() {
991 if (this.sessionCheckTimer) {
992 clearInterval(this.sessionCheckTimer);
993 this.sessionCheckTimer = null;
994 }
995 }
996 checkSession() {
997 const iframe = this.document.getElementById(this.sessionCheckIFrameName);
998 if (!iframe) {
999 this.logger.warn('checkSession did not find iframe', this.sessionCheckIFrameName);
1000 }
1001 const sessionState = this.getSessionState();
1002 if (!sessionState) {
1003 this.stopSessionCheckTimer();
1004 }
1005 const message = this.clientId + ' ' + sessionState;
1006 iframe.contentWindow.postMessage(message, this.issuer);
1007 }
1008 async createLoginUrl(state = '', loginHint = '', customRedirectUri = '', noPrompt = false, params = {}) {
1009 const that = this; // eslint-disable-line @typescript-eslint/no-this-alias
1010 let redirectUri;
1011 if (customRedirectUri) {
1012 redirectUri = customRedirectUri;
1013 }
1014 else {
1015 redirectUri = this.redirectUri;
1016 }
1017 const nonce = await this.createAndSaveNonce();
1018 if (state) {
1019 state =
1020 nonce + this.config.nonceStateSeparator + encodeURIComponent(state);
1021 }
1022 else {
1023 state = nonce;
1024 }
1025 if (!this.requestAccessToken && !this.oidc) {
1026 throw new Error('Either requestAccessToken or oidc or both must be true');
1027 }
1028 if (this.config.responseType) {
1029 this.responseType = this.config.responseType;
1030 }
1031 else {
1032 if (this.oidc && this.requestAccessToken) {
1033 this.responseType = 'id_token token';
1034 }
1035 else if (this.oidc && !this.requestAccessToken) {
1036 this.responseType = 'id_token';
1037 }
1038 else {
1039 this.responseType = 'token';
1040 }
1041 }
1042 const seperationChar = that.loginUrl.indexOf('?') > -1 ? '&' : '?';
1043 let scope = that.scope;
1044 if (this.oidc && !scope.match(/(^|\s)openid($|\s)/)) {
1045 scope = 'openid ' + scope;
1046 }
1047 let url = that.loginUrl +
1048 seperationChar +
1049 'response_type=' +
1050 encodeURIComponent(that.responseType) +
1051 '&client_id=' +
1052 encodeURIComponent(that.clientId) +
1053 '&state=' +
1054 encodeURIComponent(state) +
1055 '&redirect_uri=' +
1056 encodeURIComponent(redirectUri) +
1057 '&scope=' +
1058 encodeURIComponent(scope);
1059 if (this.responseType.includes('code') && !this.disablePKCE) {
1060 const [challenge, verifier] = await this.createChallangeVerifierPairForPKCE();
1061 if (this.saveNoncesInLocalStorage &&
1062 typeof window['localStorage'] !== 'undefined') {
1063 localStorage.setItem('PKCE_verifier', verifier);
1064 }
1065 else {
1066 this._storage.setItem('PKCE_verifier', verifier);
1067 }
1068 url += '&code_challenge=' + challenge;
1069 url += '&code_challenge_method=S256';
1070 }
1071 if (loginHint) {
1072 url += '&login_hint=' + encodeURIComponent(loginHint);
1073 }
1074 if (that.resource) {
1075 url += '&resource=' + encodeURIComponent(that.resource);
1076 }
1077 if (that.oidc) {
1078 url += '&nonce=' + encodeURIComponent(nonce);
1079 }
1080 if (noPrompt) {
1081 url += '&prompt=none';
1082 }
1083 for (const key of Object.keys(params)) {
1084 url +=
1085 '&' + encodeURIComponent(key) + '=' + encodeURIComponent(params[key]);
1086 }
1087 if (this.customQueryParams) {
1088 for (const key of Object.getOwnPropertyNames(this.customQueryParams)) {
1089 url +=
1090 '&' + key + '=' + encodeURIComponent(this.customQueryParams[key]);
1091 }
1092 }
1093 return url;
1094 }
1095 initImplicitFlowInternal(additionalState = '', params = '') {
1096 if (this.inImplicitFlow) {
1097 return;
1098 }
1099 this.inImplicitFlow = true;
1100 if (!this.validateUrlForHttps(this.loginUrl)) {
1101 throw new Error("loginUrl must use HTTPS (with TLS), or config value for property 'requireHttps' must be set to 'false' and allow HTTP (without TLS).");
1102 }
1103 let addParams = {};
1104 let loginHint = null;
1105 if (typeof params === 'string') {
1106 loginHint = params;
1107 }
1108 else if (typeof params === 'object') {
1109 addParams = params;
1110 }
1111 this.createLoginUrl(additionalState, loginHint, null, false, addParams)
1112 .then(this.config.openUri)
1113 .catch((error) => {
1114 console.error('Error in initImplicitFlow', error);
1115 this.inImplicitFlow = false;
1116 });
1117 }
1118 /**
1119 * Starts the implicit flow and redirects to user to
1120 * the auth servers' login url.
1121 *
1122 * @param additionalState Optional state that is passed around.
1123 * You'll find this state in the property `state` after `tryLogin` logged in the user.
1124 * @param params Hash with additional parameter. If it is a string, it is used for the
1125 * parameter loginHint (for the sake of compatibility with former versions)
1126 */
1127 initImplicitFlow(additionalState = '', params = '') {
1128 if (this.loginUrl !== '') {
1129 this.initImplicitFlowInternal(additionalState, params);
1130 }
1131 else {
1132 this.events
1133 .pipe(filter((e) => e.type === 'discovery_document_loaded'))
1134 .subscribe(() => this.initImplicitFlowInternal(additionalState, params));
1135 }
1136 }
1137 /**
1138 * Reset current implicit flow
1139 *
1140 * @description This method allows resetting the current implict flow in order to be initialized again.
1141 */
1142 resetImplicitFlow() {
1143 this.inImplicitFlow = false;
1144 }
1145 callOnTokenReceivedIfExists(options) {
1146 const that = this; // eslint-disable-line @typescript-eslint/no-this-alias
1147 if (options.onTokenReceived) {
1148 const tokenParams = {
1149 idClaims: that.getIdentityClaims(),
1150 idToken: that.getIdToken(),
1151 accessToken: that.getAccessToken(),
1152 state: that.state,
1153 };
1154 options.onTokenReceived(tokenParams);
1155 }
1156 }
1157 storeAccessTokenResponse(accessToken, refreshToken, expiresIn, grantedScopes, customParameters) {
1158 this._storage.setItem('access_token', accessToken);
1159 if (grantedScopes && !Array.isArray(grantedScopes)) {
1160 this._storage.setItem('granted_scopes', JSON.stringify(grantedScopes.split(' ')));
1161 }
1162 else if (grantedScopes && Array.isArray(grantedScopes)) {
1163 this._storage.setItem('granted_scopes', JSON.stringify(grantedScopes));
1164 }
1165 this._storage.setItem('access_token_stored_at', '' + this.dateTimeService.now());
1166 if (expiresIn) {
1167 const expiresInMilliSeconds = expiresIn * 1000;
1168 const now = this.dateTimeService.new();
1169 const expiresAt = now.getTime() + expiresInMilliSeconds;
1170 this._storage.setItem('expires_at', '' + expiresAt);
1171 }
1172 if (refreshToken) {
1173 this._storage.setItem('refresh_token', refreshToken);
1174 }
1175 if (customParameters) {
1176 customParameters.forEach((value, key) => {
1177 this._storage.setItem(key, value);
1178 });
1179 }
1180 }
1181 /**
1182 * Delegates to tryLoginImplicitFlow for the sake of competability
1183 * @param options Optional options.
1184 */
1185 tryLogin(options = null) {
1186 if (this.config.responseType === 'code') {
1187 return this.tryLoginCodeFlow(options).then(() => true);
1188 }
1189 else {
1190 return this.tryLoginImplicitFlow(options);
1191 }
1192 }
1193 parseQueryString(queryString) {
1194 if (!queryString || queryString.length === 0) {
1195 return {};
1196 }
1197 if (queryString.charAt(0) === '?') {
1198 queryString = queryString.substr(1);
1199 }
1200 return this.urlHelper.parseQueryString(queryString);
1201 }
1202 async tryLoginCodeFlow(options = null) {
1203 options = options || {};
1204 const querySource = options.customHashFragment
1205 ? options.customHashFragment.substring(1)
1206 : window.location.search;
1207 const parts = this.getCodePartsFromUrl(querySource);
1208 const code = parts['code'];
1209 const state = parts['state'];
1210 const sessionState = parts['session_state'];
1211 if (!options.preventClearHashAfterLogin) {
1212 const href = location.origin +
1213 location.pathname +
1214 location.search
1215 .replace(/code=[^&$]*/, '')
1216 .replace(/scope=[^&$]*/, '')
1217 .replace(/state=[^&$]*/, '')
1218 .replace(/session_state=[^&$]*/, '')
1219 .replace(/^\?&/, '?')
1220 .replace(/&$/, '')
1221 .replace(/^\?$/, '')
1222 .replace(/&+/g, '&')
1223 .replace(/\?&/, '?')
1224 .replace(/\?$/, '') +
1225 location.hash;
1226 history.replaceState(null, window.name, href);
1227 }
1228 const [nonceInState, userState] = this.parseState(state);
1229 this.state = userState;
1230 if (parts['error']) {
1231 this.debug('error trying to login');
1232 this.handleLoginError(options, parts);
1233 const err = new OAuthErrorEvent('code_error', {}, parts);
1234 this.eventsSubject.next(err);
1235 return Promise.reject(err);
1236 }
1237 if (!options.disableNonceCheck) {
1238 if (!nonceInState) {
1239 this.saveRequestedRoute();
1240 return Promise.resolve();
1241 }
1242 if (!options.disableOAuth2StateCheck) {
1243 const success = this.validateNonce(nonceInState);
1244 if (!success) {
1245 const event = new OAuthErrorEvent('invalid_nonce_in_state', null);
1246 this.eventsSubject.next(event);
1247 return Promise.reject(event);
1248 }
1249 }
1250 }
1251 this.storeSessionState(sessionState);
1252 if (code) {
1253 await this.getTokenFromCode(code, options);
1254 this.restoreRequestedRoute();
1255 return Promise.resolve();
1256 }
1257 else {
1258 return Promise.resolve();
1259 }
1260 }
1261 saveRequestedRoute() {
1262 if (this.config.preserveRequestedRoute) {
1263 this._storage.setItem('requested_route', window.location.pathname + window.location.search);
1264 }
1265 }
1266 restoreRequestedRoute() {
1267 const requestedRoute = this._storage.getItem('requested_route');
1268 if (requestedRoute) {
1269 history.replaceState(null, '', window.location.origin + requestedRoute);
1270 }
1271 }
1272 /**
1273 * Retrieve the returned auth code from the redirect uri that has been called.
1274 * If required also check hash, as we could use hash location strategy.
1275 */
1276 getCodePartsFromUrl(queryString) {
1277 if (!queryString || queryString.length === 0) {
1278 return this.urlHelper.getHashFragmentParams();
1279 }
1280 // normalize query string
1281 if (queryString.charAt(0) === '?') {
1282 queryString = queryString.substr(1);
1283 }
1284 return this.urlHelper.parseQueryString(queryString);
1285 }
1286 /**
1287 * Get token using an intermediate code. Works for the Authorization Code flow.
1288 */
1289 getTokenFromCode(code, options) {
1290 let params = new HttpParams({ encoder: new WebHttpUrlEncodingCodec() })
1291 .set('grant_type', 'authorization_code')
1292 .set('code', code)
1293 .set('redirect_uri', options.customRedirectUri || this.redirectUri);
1294 if (!this.disablePKCE) {
1295 let PKCEVerifier;
1296 if (this.saveNoncesInLocalStorage &&
1297 typeof window['localStorage'] !== 'undefined') {
1298 PKCEVerifier = localStorage.getItem('PKCE_verifier');
1299 }
1300 else {
1301 PKCEVerifier = this._storage.getItem('PKCE_verifier');
1302 }
1303 if (!PKCEVerifier) {
1304 console.warn('No PKCE verifier found in oauth storage!');
1305 }
1306 else {
1307 params = params.set('code_verifier', PKCEVerifier);
1308 }
1309 }
1310 return this.fetchAndProcessToken(params, options);
1311 }
1312 fetchAndProcessToken(params, options) {
1313 options = options || {};
1314 this.assertUrlNotNullAndCorrectProtocol(this.tokenEndpoint, 'tokenEndpoint');
1315 let headers = new HttpHeaders().set('Content-Type', 'application/x-www-form-urlencoded');
1316 if (this.useHttpBasicAuth) {
1317 const header = btoa(`${this.clientId}:${this.dummyClientSecret}`);
1318 headers = headers.set('Authorization', 'Basic ' + header);
1319 }
1320 if (!this.useHttpBasicAuth) {
1321 params = params.set('client_id', this.clientId);
1322 }
1323 if (!this.useHttpBasicAuth && this.dummyClientSecret) {
1324 params = params.set('client_secret', this.dummyClientSecret);
1325 }
1326 return new Promise((resolve, reject) => {
1327 if (this.customQueryParams) {
1328 for (const key of Object.getOwnPropertyNames(this.customQueryParams)) {
1329 params = params.set(key, this.customQueryParams[key]);
1330 }
1331 }
1332 this.http
1333 .post(this.tokenEndpoint, params, { headers })
1334 .subscribe((tokenResponse) => {
1335 this.debug('refresh tokenResponse', tokenResponse);
1336 this.storeAccessTokenResponse(tokenResponse.access_token, tokenResponse.refresh_token, tokenResponse.expires_in ||
1337 this.fallbackAccessTokenExpirationTimeInSec, tokenResponse.scope, this.extractRecognizedCustomParameters(tokenResponse));
1338 if (this.oidc && tokenResponse.id_token) {
1339 this.processIdToken(tokenResponse.id_token, tokenResponse.access_token, options.disableNonceCheck)
1340 .then((result) => {
1341 this.storeIdToken(result);
1342 this.eventsSubject.next(new OAuthSuccessEvent('token_received'));
1343 this.eventsSubject.next(new OAuthSuccessEvent('token_refreshed'));
1344 resolve(tokenResponse);
1345 })
1346 .catch((reason) => {
1347 this.eventsSubject.next(new OAuthErrorEvent('token_validation_error', reason));
1348 console.error('Error validating tokens');
1349 console.error(reason);
1350 reject(reason);
1351 });
1352 }
1353 else {
1354 this.eventsSubject.next(new OAuthSuccessEvent('token_received'));
1355 this.eventsSubject.next(new OAuthSuccessEvent('token_refreshed'));
1356 resolve(tokenResponse);
1357 }
1358 }, (err) => {
1359 console.error('Error getting token', err);
1360 this.eventsSubject.next(new OAuthErrorEvent('token_refresh_error', err));
1361 reject(err);
1362 });
1363 });
1364 }
1365 /**
1366 * Checks whether there are tokens in the hash fragment
1367 * as a result of the implicit flow. These tokens are
1368 * parsed, validated and used to sign the user in to the
1369 * current client.
1370 *
1371 * @param options Optional options.
1372 */
1373 tryLoginImplicitFlow(options = null) {
1374 options = options || {};
1375 let parts;
1376 if (options.customHashFragment) {
1377 parts = this.urlHelper.getHashFragmentParams(options.customHashFragment);
1378 }
1379 else {
1380 parts = this.urlHelper.getHashFragmentParams();
1381 }
1382 this.debug('parsed url', parts);
1383 const state = parts['state'];
1384 const [nonceInState, userState] = this.parseState(state);
1385 this.state = userState;
1386 if (parts['error']) {
1387 this.debug('error trying to login');
1388 this.handleLoginError(options, parts);
1389 const err = new OAuthErrorEvent('token_error', {}, parts);
1390 this.eventsSubject.next(err);
1391 return Promise.reject(err);
1392 }
1393 const accessToken = parts['access_token'];
1394 const idToken = parts['id_token'];
1395 const sessionState = parts['session_state'];
1396 const grantedScopes = parts['scope'];
1397 if (!this.requestAccessToken && !this.oidc) {
1398 return Promise.reject('Either requestAccessToken or oidc (or both) must be true.');
1399 }
1400 if (this.requestAccessToken && !accessToken) {
1401 return Promise.resolve(false);
1402 }
1403 if (this.requestAccessToken && !options.disableOAuth2StateCheck && !state) {
1404 return Promise.resolve(false);
1405 }
1406 if (this.oidc && !idToken) {
1407 return Promise.resolve(false);
1408 }
1409 if (this.sessionChecksEnabled && !sessionState) {
1410 this.logger.warn('session checks (Session Status Change Notification) ' +
1411 'were activated in the configuration but the id_token ' +
1412 'does not contain a session_state claim');
1413 }
1414 if (this.requestAccessToken && !options.disableNonceCheck) {
1415 const success = this.validateNonce(nonceInState);
1416 if (!success) {
1417 const event = new OAuthErrorEvent('invalid_nonce_in_state', null);
1418 this.eventsSubject.next(event);
1419 return Promise.reject(event);
1420 }
1421 }
1422 if (this.requestAccessToken) {
1423 this.storeAccessTokenResponse(accessToken, null, parts['expires_in'] || this.fallbackAccessTokenExpirationTimeInSec, grantedScopes);
1424 }
1425 if (!this.oidc) {
1426 this.eventsSubject.next(new OAuthSuccessEvent('token_received'));
1427 if (this.clearHashAfterLogin && !options.preventClearHashAfterLogin) {
1428 this.clearLocationHash();
1429 }
1430 this.callOnTokenReceivedIfExists(options);
1431 return Promise.resolve(true);
1432 }
1433 return this.processIdToken(idToken, accessToken, options.disableNonceCheck)
1434 .then((result) => {
1435 if (options.validationHandler) {
1436 return options
1437 .validationHandler({
1438 accessToken: accessToken,
1439 idClaims: result.idTokenClaims,
1440 idToken: result.idToken,
1441 state: state,
1442 })
1443 .then(() => result);
1444 }
1445 return result;
1446 })
1447 .then((result) => {
1448 this.storeIdToken(result);
1449 this.storeSessionState(sessionState);
1450 if (this.clearHashAfterLogin && !options.preventClearHashAfterLogin) {
1451 this.clearLocationHash();
1452 }
1453 this.eventsSubject.next(new OAuthSuccessEvent('token_received'));
1454 this.callOnTokenReceivedIfExists(options);
1455 this.inImplicitFlow = false;
1456 return true;
1457 })
1458 .catch((reason) => {
1459 this.eventsSubject.next(new OAuthErrorEvent('token_validation_error', reason));
1460 this.logger.error('Error validating tokens');
1461 this.logger.error(reason);
1462 return Promise.reject(reason);
1463 });
1464 }
1465 parseState(state) {
1466 let nonce = state;
1467 let userState = '';
1468 if (state) {
1469 const idx = state.indexOf(this.config.nonceStateSeparator);
1470 if (idx > -1) {
1471 nonce = state.substr(0, idx);
1472 userState = state.substr(idx + this.config.nonceStateSeparator.length);
1473 }
1474 }
1475 return [nonce, userState];
1476 }
1477 validateNonce(nonceInState) {
1478 let savedNonce;
1479 if (this.saveNoncesInLocalStorage &&
1480 typeof window['localStorage'] !== 'undefined') {
1481 savedNonce = localStorage.getItem('nonce');
1482 }
1483 else {
1484 savedNonce = this._storage.getItem('nonce');
1485 }
1486 if (savedNonce !== nonceInState) {
1487 const err = 'Validating access_token failed, wrong state/nonce.';
1488 console.error(err, savedNonce, nonceInState);
1489 return false;
1490 }
1491 return true;
1492 }
1493 storeIdToken(idToken) {
1494 this._storage.setItem('id_token', idToken.idToken);
1495 this._storage.setItem('id_token_claims_obj', idToken.idTokenClaimsJson);
1496 this._storage.setItem('id_token_expires_at', '' + idToken.idTokenExpiresAt);
1497 this._storage.setItem('id_token_stored_at', '' + this.dateTimeService.now());
1498 }
1499 storeSessionState(sessionState) {
1500 this._storage.setItem('session_state', sessionState);
1501 }
1502 getSessionState() {
1503 return this._storage.getItem('session_state');
1504 }
1505 handleLoginError(options, parts) {
1506 if (options.onLoginError) {
1507 options.onLoginError(parts);
1508 }
1509 if (this.clearHashAfterLogin && !options.preventClearHashAfterLogin) {
1510 this.clearLocationHash();
1511 }
1512 }
1513 getClockSkewInMsec(defaultSkewMsc = 600000) {
1514 if (!this.clockSkewInSec && this.clockSkewInSec !== 0) {
1515 return defaultSkewMsc;
1516 }
1517 return this.clockSkewInSec * 1000;
1518 }
1519 /**
1520 * @ignore
1521 */
1522 processIdToken(idToken, accessToken, skipNonceCheck = false) {
1523 const tokenParts = idToken.split('.');
1524 const headerBase64 = this.padBase64(tokenParts[0]);
1525 const headerJson = b64DecodeUnicode(headerBase64);
1526 const header = JSON.parse(headerJson);
1527 const claimsBase64 = this.padBase64(tokenParts[1]);
1528 const claimsJson = b64DecodeUnicode(claimsBase64);
1529 const claims = JSON.parse(claimsJson);
1530 let savedNonce;
1531 if (this.saveNoncesInLocalStorage &&
1532 typeof window['localStorage'] !== 'undefined') {
1533 savedNonce = localStorage.getItem('nonce');
1534 }
1535 else {
1536 savedNonce = this._storage.getItem('nonce');
1537 }
1538 if (Array.isArray(claims.aud)) {
1539 if (claims.aud.every((v) => v !== this.clientId)) {
1540 const err = 'Wrong audience: ' + claims.aud.join(',');
1541 this.logger.warn(err);
1542 return Promise.reject(err);
1543 }
1544 }
1545 else {
1546 if (claims.aud !== this.clientId) {
1547 const err = 'Wrong audience: ' + claims.aud;
1548 this.logger.warn(err);
1549 return Promise.reject(err);
1550 }
1551 }
1552 if (!claims.sub) {
1553 const err = 'No sub claim in id_token';
1554 this.logger.warn(err);
1555 return Promise.reject(err);
1556 }
1557 /* For now, we only check whether the sub against
1558 * silentRefreshSubject when sessionChecksEnabled is on
1559 * We will reconsider in a later version to do this
1560 * in every other case too.
1561 */
1562 if (this.sessionChecksEnabled &&
1563 this.silentRefreshSubject &&
1564 this.silentRefreshSubject !== claims['sub']) {
1565 const err = 'After refreshing, we got an id_token for another user (sub). ' +
1566 `Expected sub: ${this.silentRefreshSubject}, received sub: ${claims['sub']}`;
1567 this.logger.warn(err);
1568 return Promise.reject(err);
1569 }
1570 if (!claims.iat) {
1571 const err = 'No iat claim in id_token';
1572 this.logger.warn(err);
1573 return Promise.reject(err);
1574 }
1575 if (!this.skipIssuerCheck && claims.iss !== this.issuer) {
1576 const err = 'Wrong issuer: ' + claims.iss;
1577 this.logger.warn(err);
1578 return Promise.reject(err);
1579 }
1580 if (!skipNonceCheck && claims.nonce !== savedNonce) {
1581 const err = 'Wrong nonce: ' + claims.nonce;
1582 this.logger.warn(err);
1583 return Promise.reject(err);
1584 }
1585 // at_hash is not applicable to authorization code flow
1586 // addressing https://github.com/manfredsteyer/angular-oauth2-oidc/issues/661
1587 // i.e. Based on spec the at_hash check is only true for implicit code flow on Ping Federate
1588 // https://www.pingidentity.com/developer/en/resources/openid-connect-developers-guide.html
1589 if (Object.prototype.hasOwnProperty.call(this, 'responseType') &&
1590 (this.responseType === 'code' || this.responseType === 'id_token')) {
1591 this.disableAtHashCheck = true;
1592 }
1593 if (!this.disableAtHashCheck &&
1594 this.requestAccessToken &&
1595 !claims['at_hash']) {
1596 const err = 'An at_hash is needed!';
1597 this.logger.warn(err);
1598 return Promise.reject(err);
1599 }
1600 const now = this.dateTimeService.now();
1601 const issuedAtMSec = claims.iat * 1000;
1602 const expiresAtMSec = claims.exp * 1000;
1603 const clockSkewInMSec = this.getClockSkewInMsec(); // (this.getClockSkewInMsec() || 600) * 1000;
1604 if (issuedAtMSec - clockSkewInMSec >= now ||
1605 expiresAtMSec + clockSkewInMSec - this.decreaseExpirationBySec <= now) {
1606 const err = 'Token has expired';
1607 console.error(err);
1608 console.error({
1609 now: now,
1610 issuedAtMSec: issuedAtMSec,
1611 expiresAtMSec: expiresAtMSec,
1612 });
1613 return Promise.reject(err);
1614 }
1615 const validationParams = {
1616 accessToken: accessToken,
1617 idToken: idToken,
1618 jwks: this.jwks,
1619 idTokenClaims: claims,
1620 idTokenHeader: header,
1621 loadKeys: () => this.loadJwks(),
1622 };
1623 if (this.disableAtHashCheck) {
1624 return this.checkSignature(validationParams).then(() => {
1625 const result = {
1626 idToken: idToken,
1627 idTokenClaims: claims,
1628 idTokenClaimsJson: claimsJson,
1629 idTokenHeader: header,
1630 idTokenHeaderJson: headerJson,
1631 idTokenExpiresAt: expiresAtMSec,
1632 };
1633 return result;
1634 });
1635 }
1636 return this.checkAtHash(validationParams).then((atHashValid) => {
1637 if (!this.disableAtHashCheck && this.requestAccessToken && !atHashValid) {
1638 const err = 'Wrong at_hash';
1639 this.logger.warn(err);
1640 return Promise.reject(err);
1641 }
1642 return this.checkSignature(validationParams).then(() => {
1643 const atHashCheckEnabled = !this.disableAtHashCheck;
1644 const result = {
1645 idToken: idToken,
1646 idTokenClaims: claims,
1647 idTokenClaimsJson: claimsJson,
1648 idTokenHeader: header,
1649 idTokenHeaderJson: headerJson,
1650 idTokenExpiresAt: expiresAtMSec,
1651 };
1652 if (atHashCheckEnabled) {
1653 return this.checkAtHash(validationParams).then((atHashValid) => {
1654 if (this.requestAccessToken && !atHashValid) {
1655 const err = 'Wrong at_hash';
1656 this.logger.warn(err);
1657 return Promise.reject(err);
1658 }
1659 else {
1660 return result;
1661 }
1662 });
1663 }
1664 else {
1665 return result;
1666 }
1667 });
1668 });
1669 }
1670 /**
1671 * Returns the received claims about the user.
1672 */
1673 getIdentityClaims() {
1674 const claims = this._storage.getItem('id_token_claims_obj');
1675 if (!claims) {
1676 return null;
1677 }
1678 return JSON.parse(claims);
1679 }
1680 /**
1681 * Returns the granted scopes from the server.
1682 */
1683 getGrantedScopes() {
1684 const scopes = this._storage.getItem('granted_scopes');
1685 if (!scopes) {
1686 return null;
1687 }
1688 return JSON.parse(scopes);
1689 }
1690 /**
1691 * Returns the current id_token.
1692 */
1693 getIdToken() {
1694 return this._storage ? this._storage.getItem('id_token') : null;
1695 }
1696 padBase64(base64data) {
1697 while (base64data.length % 4 !== 0) {
1698 base64data += '=';
1699 }
1700 return base64data;
1701 }
1702 /**
1703 * Returns the current access_token.
1704 */
1705 getAccessToken() {
1706 return this._storage ? this._storage.getItem('access_token') : null;
1707 }
1708 getRefreshToken() {
1709 return this._storage ? this._storage.getItem('refresh_token') : null;
1710 }
1711 /**
1712 * Returns the expiration date of the access_token
1713 * as milliseconds since 1970.
1714 */
1715 getAccessTokenExpiration() {
1716 if (!this._storage.getItem('expires_at')) {
1717 return null;
1718 }
1719 return parseInt(this._storage.getItem('expires_at'), 10);
1720 }
1721 getAccessTokenStoredAt() {
1722 return parseInt(this._storage.getItem('access_token_stored_at'), 10);
1723 }
1724 getIdTokenStoredAt() {
1725 return parseInt(this._storage.getItem('id_token_stored_at'), 10);
1726 }
1727 /**
1728 * Returns the expiration date of the id_token
1729 * as milliseconds since 1970.
1730 */
1731 getIdTokenExpiration() {
1732 if (!this._storage.getItem('id_token_expires_at')) {
1733 return null;
1734 }
1735 return parseInt(this._storage.getItem('id_token_expires_at'), 10);
1736 }
1737 /**
1738 * Checkes, whether there is a valid access_token.
1739 */
1740 hasValidAccessToken() {
1741 if (this.getAccessToken()) {
1742 const expiresAt = this._storage.getItem('expires_at');
1743 const now = this.dateTimeService.new();
1744 if (expiresAt &&
1745 parseInt(expiresAt, 10) - this.decreaseExpirationBySec <
1746 now.getTime() - this.getClockSkewInMsec()) {
1747 return false;
1748 }
1749 return true;
1750 }
1751 return false;
1752 }
1753 /**
1754 * Checks whether there is a valid id_token.
1755 */
1756 hasValidIdToken() {
1757 if (this.getIdToken()) {
1758 const expiresAt = this._storage.getItem('id_token_expires_at');
1759 const now = this.dateTimeService.new();
1760 if (expiresAt &&
1761 parseInt(expiresAt, 10) - this.decreaseExpirationBySec <
1762 now.getTime() - this.getClockSkewInMsec()) {
1763 return false;
1764 }
1765 return true;
1766 }
1767 return false;
1768 }
1769 /**
1770 * Retrieve a saved custom property of the TokenReponse object. Only if predefined in authconfig.
1771 */
1772 getCustomTokenResponseProperty(requestedProperty) {
1773 return this._storage &&
1774 this.config.customTokenParameters &&
1775 this.config.customTokenParameters.indexOf(requestedProperty) >= 0 &&
1776 this._storage.getItem(requestedProperty) !== null
1777 ? JSON.parse(this._storage.getItem(requestedProperty))
1778 : null;
1779 }
1780 /**
1781 * Returns the auth-header that can be used
1782 * to transmit the access_token to a service
1783 */
1784 authorizationHeader() {
1785 return 'Bearer ' + this.getAccessToken();
1786 }
1787 logOut(customParameters = {}, state = '') {
1788 let noRedirectToLogoutUrl = false;
1789 if (typeof customParameters === 'boolean') {
1790 noRedirectToLogoutUrl = customParameters;
1791 customParameters = {};
1792 }
1793 const id_token = this.getIdToken();
1794 this._storage.removeItem('access_token');
1795 this._storage.removeItem('id_token');
1796 this._storage.removeItem('refresh_token');
1797 if (this.saveNoncesInLocalStorage) {
1798 localStorage.removeItem('nonce');
1799 localStorage.removeItem('PKCE_verifier');
1800 }
1801 else {
1802 this._storage.removeItem('nonce');
1803 this._storage.removeItem('PKCE_verifier');
1804 }
1805 this._storage.removeItem('expires_at');
1806 this._storage.removeItem('id_token_claims_obj');
1807 this._storage.removeItem('id_token_expires_at');
1808 this._storage.removeItem('id_token_stored_at');
1809 this._storage.removeItem('access_token_stored_at');
1810 this._storage.removeItem('granted_scopes');
1811 this._storage.removeItem('session_state');
1812 if (this.config.customTokenParameters) {
1813 this.config.customTokenParameters.forEach((customParam) => this._storage.removeItem(customParam));
1814 }
1815 this.silentRefreshSubject = null;
1816 this.eventsSubject.next(new OAuthInfoEvent('logout'));
1817 if (!this.logoutUrl) {
1818 return;
1819 }
1820 if (noRedirectToLogoutUrl) {
1821 return;
1822 }
1823 // if (!id_token && !this.postLogoutRedirectUri) {
1824 // return;
1825 // }
1826 let logoutUrl;
1827 if (!this.validateUrlForHttps(this.logoutUrl)) {
1828 throw new Error("logoutUrl must use HTTPS (with TLS), or config value for property 'requireHttps' must be set to 'false' and allow HTTP (without TLS).");
1829 }
1830 // For backward compatibility
1831 if (this.logoutUrl.indexOf('{{') > -1) {
1832 logoutUrl = this.logoutUrl
1833 .replace(/\{\{id_token\}\}/, encodeURIComponent(id_token))
1834 .replace(/\{\{client_id\}\}/, encodeURIComponent(this.clientId));
1835 }
1836 else {
1837 let params = new HttpParams({ encoder: new WebHttpUrlEncodingCodec() });
1838 if (id_token) {
1839 params = params.set('id_token_hint', id_token);
1840 }
1841 const postLogoutUrl = this.postLogoutRedirectUri ||
1842 (this.redirectUriAsPostLogoutRedirectUriFallback && this.redirectUri) ||
1843 '';
1844 if (postLogoutUrl) {
1845 params = params.set('post_logout_redirect_uri', postLogoutUrl);
1846 if (state) {
1847 params = params.set('state', state);
1848 }
1849 }
1850 for (const key in customParameters) {
1851 params = params.set(key, customParameters[key]);
1852 }
1853 logoutUrl =
1854 this.logoutUrl +
1855 (this.logoutUrl.indexOf('?') > -1 ? '&' : '?') +
1856 params.toString();
1857 }
1858 this.config.openUri(logoutUrl);
1859 }
1860 /**
1861 * @ignore
1862 */
1863 createAndSaveNonce() {
1864 const that = this; // eslint-disable-line @typescript-eslint/no-this-alias
1865 return this.createNonce().then(function (nonce) {
1866 // Use localStorage for nonce if possible
1867 // localStorage is the only storage who survives a
1868 // redirect in ALL browsers (also IE)
1869 // Otherwiese we'd force teams who have to support
1870 // IE into using localStorage for everything
1871 if (that.saveNoncesInLocalStorage &&
1872 typeof window['localStorage'] !== 'undefined') {
1873 localStorage.setItem('nonce', nonce);
1874 }
1875 else {
1876 that._storage.setItem('nonce', nonce);
1877 }
1878 return nonce;
1879 });
1880 }
1881 /**
1882 * @ignore
1883 */
1884 ngOnDestroy() {
1885 this.clearAccessTokenTimer();
1886 this.clearIdTokenTimer();
1887 this.removeSilentRefreshEventListener();
1888 const silentRefreshFrame = this.document.getElementById(this.silentRefreshIFrameName);
1889 if (silentRefreshFrame) {
1890 silentRefreshFrame.remove();
1891 }
1892 this.stopSessionCheckTimer();
1893 this.removeSessionCheckEventListener();
1894 const sessionCheckFrame = this.document.getElementById(this.sessionCheckIFrameName);
1895 if (sessionCheckFrame) {
1896 sessionCheckFrame.remove();
1897 }
1898 }
1899 createNonce() {
1900 return new Promise((resolve) => {
1901 if (this.rngUrl) {
1902 throw new Error('createNonce with rng-web-api has not been implemented so far');
1903 }
1904 /*
1905 * This alphabet is from:
1906 * https://tools.ietf.org/html/rfc7636#section-4.1
1907 *
1908 * [A-Z] / [a-z] / [0-9] / "-" / "." / "_" / "~"
1909 */
1910 const unreserved = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~';
1911 let size = 45;
1912 let id = '';
1913 const crypto = typeof self === 'undefined' ? null : self.crypto || self['msCrypto'];
1914 if (crypto) {
1915 let bytes = new Uint8Array(size);
1916 crypto.getRandomValues(bytes);
1917 // Needed for IE
1918 if (!bytes.map) {
1919 bytes.map = Array.prototype.map;
1920 }
1921 bytes = bytes.map((x) => unreserved.charCodeAt(x % unreserved.length));
1922 id = String.fromCharCode.apply(null, bytes);
1923 }
1924 else {
1925 while (0 < size--) {
1926 id += unreserved[(Math.random() * unreserved.length) | 0];
1927 }
1928 }
1929 resolve(base64UrlEncode(id));
1930 });
1931 }
1932 async checkAtHash(params) {
1933 if (!this.tokenValidationHandler) {
1934 this.logger.warn('No tokenValidationHandler configured. Cannot check at_hash.');
1935 return true;
1936 }
1937 return this.tokenValidationHandler.validateAtHash(params);
1938 }
1939 checkSignature(params) {
1940 if (!this.tokenValidationHandler) {
1941 this.logger.warn('No tokenValidationHandler configured. Cannot check signature.');
1942 return Promise.resolve(null);
1943 }
1944 return this.tokenValidationHandler.validateSignature(params);
1945 }
1946 /**
1947 * Start the implicit flow or the code flow,
1948 * depending on your configuration.
1949 */
1950 initLoginFlow(additionalState = '', params = {}) {
1951 if (this.responseType === 'code') {
1952 return this.initCodeFlow(additionalState, params);
1953 }
1954 else {
1955 return this.initImplicitFlow(additionalState, params);
1956 }
1957 }
1958 /**
1959 * Starts the authorization code flow and redirects to user to
1960 * the auth servers login url.
1961 */
1962 initCodeFlow(additionalState = '', params = {}) {
1963 if (this.loginUrl !== '') {
1964 this.initCodeFlowInternal(additionalState, params);
1965 }
1966 else {
1967 this.events
1968 .pipe(filter((e) => e.type === 'discovery_document_loaded'))
1969 .subscribe(() => this.initCodeFlowInternal(additionalState, params));
1970 }
1971 }
1972 initCodeFlowInternal(additionalState = '', params = {}) {
1973 if (!this.validateUrlForHttps(this.loginUrl)) {
1974 throw new Error("loginUrl must use HTTPS (with TLS), or config value for property 'requireHttps' must be set to 'false' and allow HTTP (without TLS).");
1975 }
1976 let addParams = {};
1977 let loginHint = null;
1978 if (typeof params === 'string') {
1979 loginHint = params;
1980 }
1981 else if (typeof params === 'object') {
1982 addParams = params;
1983 }
1984 this.createLoginUrl(additionalState, loginHint, null, false, addParams)
1985 .then(this.config.openUri)
1986 .catch((error) => {
1987 console.error('Error in initAuthorizationCodeFlow');
1988 console.error(error);
1989 });
1990 }
1991 async createChallangeVerifierPairForPKCE() {
1992 if (!this.crypto) {
1993 throw new Error('PKCE support for code flow needs a CryptoHander. Did you import the OAuthModule using forRoot() ?');
1994 }
1995 const verifier = await this.createNonce();
1996 const challengeRaw = await this.crypto.calcHash(verifier, 'sha-256');
1997 const challenge = base64UrlEncode(challengeRaw);
1998 return [challenge, verifier];
1999 }
2000 extractRecognizedCustomParameters(tokenResponse) {
2001 const foundParameters = new Map();
2002 if (!this.config.customTokenParameters) {
2003 return foundParameters;
2004 }
2005 this.config.customTokenParameters.forEach((recognizedParameter) => {
2006 if (tokenResponse[recognizedParameter]) {
2007 foundParameters.set(recognizedParameter, JSON.stringify(tokenResponse[recognizedParameter]));
2008 }
2009 });
2010 return foundParameters;
2011 }
2012 /**
2013 * Revokes the auth token to secure the vulnarability
2014 * of the token issued allowing the authorization server to clean
2015 * up any security credentials associated with the authorization
2016 */
2017 revokeTokenAndLogout(customParameters = {}, ignoreCorsIssues = false) {
2018 const revokeEndpoint = this.revocationEndpoint;
2019 const accessToken = this.getAccessToken();
2020 const refreshToken = this.getRefreshToken();
2021 if (!accessToken) {
2022 return Promise.resolve();
2023 }
2024 let params = new HttpParams({ encoder: new WebHttpUrlEncodingCodec() });
2025 let headers = new HttpHeaders().set('Content-Type', 'application/x-www-form-urlencoded');
2026 if (this.useHttpBasicAuth) {
2027 const header = btoa(`${this.clientId}:${this.dummyClientSecret}`);
2028 headers = headers.set('Authorization', 'Basic ' + header);
2029 }
2030 if (!this.useHttpBasicAuth) {
2031 params = params.set('client_id', this.clientId);
2032 }
2033 if (!this.useHttpBasicAuth && this.dummyClientSecret) {
2034 params = params.set('client_secret', this.dummyClientSecret);
2035 }
2036 if (this.customQueryParams) {
2037 for (const key of Object.getOwnPropertyNames(this.customQueryParams)) {
2038 params = params.set(key, this.customQueryParams[key]);
2039 }
2040 }
2041 return new Promise((resolve, reject) => {
2042 let revokeAccessToken;
2043 let revokeRefreshToken;
2044 if (accessToken) {
2045 const revokationParams = params
2046 .set('token', accessToken)
2047 .set('token_type_hint', 'access_token');
2048 revokeAccessToken = this.http.post(revokeEndpoint, revokationParams, { headers });
2049 }
2050 else {
2051 revokeAccessToken = of(null);
2052 }
2053 if (refreshToken) {
2054 const revokationParams = params
2055 .set('token', refreshToken)
2056 .set('token_type_hint', 'refresh_token');
2057 revokeRefreshToken = this.http.post(revokeEndpoint, revokationParams, { headers });
2058 }
2059 else {
2060 revokeRefreshToken = of(null);
2061 }
2062 if (ignoreCorsIssues) {
2063 revokeAccessToken = revokeAccessToken.pipe(catchError((err) => {
2064 if (err.status === 0) {
2065 return of(null);
2066 }
2067 return throwError(err);
2068 }));
2069 revokeRefreshToken = revokeRefreshToken.pipe(catchError((err) => {
2070 if (err.status === 0) {
2071 return of(null);
2072 }
2073 return throwError(err);
2074 }));
2075 }
2076 combineLatest([revokeAccessToken, revokeRefreshToken]).subscribe((res) => {
2077 this.logOut(customParameters);
2078 resolve(res);
2079 this.logger.info('Token successfully revoked');
2080 }, (err) => {
2081 this.logger.error('Error revoking token', err);
2082 this.eventsSubject.next(new OAuthErrorEvent('token_revoke_error', err));
2083 reject(err);
2084 });
2085 });
2086 }
2087 /**
2088 * Clear location.hash if it's present
2089 */
2090 clearLocationHash() {
2091 // Checking for empty hash is necessary for Firefox
2092 // as setting an empty hash to an empty string adds # to the URL
2093 if (location.hash != '') {
2094 location.hash = '';
2095 }
2096 }
2097 static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "17.0.7", ngImport: i0, type: OAuthService, deps: [{ token: i0.NgZone }, { token: i1.HttpClient }, { token: i2.OAuthStorage, optional: true }, { token: i3.ValidationHandler, optional: true }, { token: i4.AuthConfig, optional: true }, { token: i5.UrlHelperService }, { token: i2.OAuthLogger }, { token: i6.HashHandler, optional: true }, { token: DOCUMENT }, { token: i7.DateTimeProvider }], target: i0.ɵɵFactoryTarget.Injectable }); }
2098 static { this.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "17.0.7", ngImport: i0, type: OAuthService }); }
2099}
2100i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "17.0.7", ngImport: i0, type: OAuthService, decorators: [{
2101 type: Injectable
2102 }], ctorParameters: () => [{ type: i0.NgZone }, { type: i1.HttpClient }, { type: i2.OAuthStorage, decorators: [{
2103 type: Optional
2104 }] }, { type: i3.ValidationHandler, decorators: [{
2105 type: Optional
2106 }] }, { type: i4.AuthConfig, decorators: [{
2107 type: Optional
2108 }] }, { type: i5.UrlHelperService }, { type: i2.OAuthLogger }, { type: i6.HashHandler, decorators: [{
2109 type: Optional
2110 }] }, { type: Document, decorators: [{
2111 type: Inject,
2112 args: [DOCUMENT]
2113 }] }, { type: i7.DateTimeProvider }] });
2114//# 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{ Injectable, NgZone, Optional, OnDestroy, Inject } from '@angular/core';\nimport {\n  HttpClient,\n  HttpHeaders,\n  HttpParams,\n  HttpErrorResponse,\n} from '@angular/common/http';\nimport {\n  Observable,\n  Subject,\n  Subscription,\n  of,\n  race,\n  from,\n  combineLatest,\n  throwError,\n} from 'rxjs';\nimport {\n  filter,\n  delay,\n  first,\n  tap,\n  map,\n  switchMap,\n  debounceTime,\n  catchError,\n} from 'rxjs/operators';\nimport { DOCUMENT } from '@angular/common';\nimport { DateTimeProvider } from './date-time-provider';\n\nimport {\n  ValidationHandler,\n  ValidationParams,\n} from './token-validation/validation-handler';\nimport { UrlHelperService } from './url-helper.service';\nimport {\n  OAuthEvent,\n  OAuthInfoEvent,\n  OAuthErrorEvent,\n  OAuthSuccessEvent,\n} from './events';\nimport {\n  OAuthLogger,\n  OAuthStorage,\n  LoginOptions,\n  ParsedIdToken,\n  OidcDiscoveryDoc,\n  TokenResponse,\n} from './types';\nimport { b64DecodeUnicode, base64UrlEncode } from './base64-helper';\nimport { AuthConfig } from './auth.config';\nimport { WebHttpUrlEncodingCodec } from './encoder';\nimport { HashHandler } from './token-validation/hash-handler';\n\n/**\n * Service for logging in and logging out with\n * OIDC and OAuth2. Supports implicit flow and\n * password flow.\n */\n@Injectable()\nexport class OAuthService extends AuthConfig implements OnDestroy {\n  // Extending AuthConfig ist just for LEGACY reasons\n  // to not break existing code.\n\n  /**\n   * The ValidationHandler used to validate received\n   * id_tokens.\n   */\n  public tokenValidationHandler: ValidationHandler;\n\n  /**\n   * @internal\n   * Deprecated:  use property events instead\n   */\n  public discoveryDocumentLoaded = false;\n\n  /**\n   * @internal\n   * Deprecated:  use property events instead\n   */\n  public discoveryDocumentLoaded$: Observable<OidcDiscoveryDoc>;\n\n  /**\n   * Informs about events, like token_received or token_expires.\n   * See the string enum EventType for a full list of event types.\n   */\n  public events: Observable<OAuthEvent>;\n\n  /**\n   * The received (passed around) state, when logging\n   * in with implicit flow.\n   */\n  public state? = '';\n\n  protected eventsSubject: Subject<OAuthEvent> = new Subject<OAuthEvent>();\n  protected discoveryDocumentLoadedSubject: Subject<OidcDiscoveryDoc> =\n    new Subject<OidcDiscoveryDoc>();\n  protected silentRefreshPostMessageEventListener: EventListener;\n  protected grantTypesSupported: Array<string> = [];\n  protected _storage: OAuthStorage;\n  protected accessTokenTimeoutSubscription: Subscription;\n  protected idTokenTimeoutSubscription: Subscription;\n  protected tokenReceivedSubscription: Subscription;\n  protected automaticRefreshSubscription: Subscription;\n  protected sessionCheckEventListener: EventListener;\n  protected jwksUri: string;\n  protected sessionCheckTimer: any;\n  protected silentRefreshSubject: string;\n  protected inImplicitFlow = false;\n\n  protected saveNoncesInLocalStorage = false;\n  private document: Document;\n\n  constructor(\n    protected ngZone: NgZone,\n    protected http: HttpClient,\n    @Optional() storage: OAuthStorage,\n    @Optional() tokenValidationHandler: ValidationHandler,\n    @Optional() protected config: AuthConfig,\n    protected urlHelper: UrlHelperService,\n    protected logger: OAuthLogger,\n    @Optional() protected crypto: HashHandler,\n    @Inject(DOCUMENT) document: Document,\n    protected dateTimeService: DateTimeProvider\n  ) {\n    super();\n\n    this.debug('angular-oauth2-oidc v10');\n\n    // See https://github.com/manfredsteyer/angular-oauth2-oidc/issues/773 for why this is needed\n    this.document = document;\n\n    if (!config) {\n      config = {};\n    }\n\n    this.discoveryDocumentLoaded$ =\n      this.discoveryDocumentLoadedSubject.asObservable();\n    this.events = this.eventsSubject.asObservable();\n\n    if (tokenValidationHandler) {\n      this.tokenValidationHandler = tokenValidationHandler;\n    }\n\n    if (config) {\n      this.configure(config);\n    }\n\n    try {\n      if (storage) {\n        this.setStorage(storage);\n      } else if (typeof sessionStorage !== 'undefined') {\n        this.setStorage(sessionStorage);\n      }\n    } catch (e) {\n      console.error(\n        'No OAuthStorage provided and cannot access default (sessionStorage).' +\n          'Consider providing a custom OAuthStorage implementation in your module.',\n        e\n      );\n    }\n\n    // in IE, sessionStorage does not always survive a redirect\n    if (this.checkLocalStorageAccessable()) {\n      const ua = window?.navigator?.userAgent;\n      const msie = ua?.includes('MSIE ') || ua?.includes('Trident');\n\n      if (msie) {\n        this.saveNoncesInLocalStorage = true;\n      }\n    }\n\n    this.setupRefreshTimer();\n  }\n\n  private checkLocalStorageAccessable() {\n    if (typeof window === 'undefined') return false;\n\n    const test = 'test';\n    try {\n      if (typeof window['localStorage'] === 'undefined') return false;\n\n      localStorage.setItem(test, test);\n      localStorage.removeItem(test);\n      return true;\n    } catch (e) {\n      return false;\n    }\n  }\n\n  /**\n   * Use this method to configure the service\n   * @param config the configuration\n   */\n  public configure(config: AuthConfig): void {\n    // For the sake of downward compatibility with\n    // original configuration API\n    Object.assign(this, new AuthConfig(), config);\n\n    this.config = Object.assign({} as AuthConfig, new AuthConfig(), config);\n\n    if (this.sessionChecksEnabled) {\n      this.setupSessionCheck();\n    }\n\n    this.configChanged();\n  }\n\n  protected configChanged(): void {\n    this.setupRefreshTimer();\n  }\n\n  public restartSessionChecksIfStillLoggedIn(): void {\n    if (this.hasValidIdToken()) {\n      this.initSessionCheck();\n    }\n  }\n\n  protected restartRefreshTimerIfStillLoggedIn(): void {\n    this.setupExpirationTimers();\n  }\n\n  protected setupSessionCheck(): void {\n    this.events\n      .pipe(filter((e) => e.type === 'token_received'))\n      .subscribe(() => {\n        this.initSessionCheck();\n      });\n  }\n\n  /**\n   * Will setup up silent refreshing for when the token is\n   * about to expire. When the user is logged out via this.logOut method, the\n   * silent refreshing will pause and not refresh the tokens until the user is\n   * logged back in via receiving a new token.\n   * @param params Additional parameter to pass\n   * @param listenTo Setup automatic refresh of a specific token type\n   */\n  public setupAutomaticSilentRefresh(\n    params: object = {},\n    listenTo?: 'access_token' | 'id_token' | 'any',\n    noPrompt = true\n  ): void {\n    let shouldRunSilentRefresh = true;\n    this.clearAutomaticRefreshTimer();\n    this.automaticRefreshSubscription = this.events\n      .pipe(\n        tap((e) => {\n          if (e.type === 'token_received') {\n            shouldRunSilentRefresh = true;\n          } else if (e.type === 'logout') {\n            shouldRunSilentRefresh = false;\n          }\n        }),\n        filter(\n          (e: OAuthInfoEvent) =>\n            e.type === 'token_expires' &&\n            (listenTo == null || listenTo === 'any' || e.info === listenTo)\n        ),\n        debounceTime(1000)\n      )\n      .subscribe(() => {\n        if (shouldRunSilentRefresh) {\n          // this.silentRefresh(params, noPrompt).catch(_ => {\n          this.refreshInternal(params, noPrompt).catch(() => {\n            this.debug('Automatic silent refresh did not work');\n          });\n        }\n      });\n\n    this.restartRefreshTimerIfStillLoggedIn();\n  }\n\n  protected refreshInternal(\n    params,\n    noPrompt\n  ): Promise<TokenResponse | OAuthEvent> {\n    if (!this.useSilentRefresh && this.responseType === 'code') {\n      return this.refreshToken();\n    } else {\n      return this.silentRefresh(params, noPrompt);\n    }\n  }\n\n  /**\n   * Convenience method that first calls `loadDiscoveryDocument(...)` and\n   * directly chains using the `then(...)` part of the promise to call\n   * the `tryLogin(...)` method.\n   *\n   * @param options LoginOptions to pass through to `tryLogin(...)`\n   */\n  public loadDiscoveryDocumentAndTryLogin(\n    options: LoginOptions = null\n  ): Promise<boolean> {\n    return this.loadDiscoveryDocument().then(() => {\n      return this.tryLogin(options);\n    });\n  }\n\n  /**\n   * Convenience method that first calls `loadDiscoveryDocumentAndTryLogin(...)`\n   * and if then chains to `initLoginFlow()`, but only if there is no valid\n   * IdToken or no valid AccessToken.\n   *\n   * @param options LoginOptions to pass through to `tryLogin(...)`\n   */\n  public loadDiscoveryDocumentAndLogin(\n    options: LoginOptions & { state?: string } = null\n  ): Promise<boolean> {\n    options = options || {};\n    return this.loadDiscoveryDocumentAndTryLogin(options).then(() => {\n      if (!this.hasValidIdToken() || !this.hasValidAccessToken()) {\n        const state = typeof options.state === 'string' ? options.state : '';\n        this.initLoginFlow(state);\n        return false;\n      } else {\n        return true;\n      }\n    });\n  }\n\n  protected debug(...args): void {\n    if (this.showDebugInformation) {\n      this.logger.debug(...args);\n    }\n  }\n\n  protected validateUrlFromDiscoveryDocument(url: string): string[] {\n    const errors: string[] = [];\n    const httpsCheck = this.validateUrlForHttps(url);\n    const issuerCheck = this.validateUrlAgainstIssuer(url);\n\n    if (!httpsCheck) {\n      errors.push(\n        'https for all urls required. Also for urls received by discovery.'\n      );\n    }\n\n    if (!issuerCheck) {\n      errors.push(\n        'Every url in discovery document has to start with the issuer url.' +\n          'Also see property strictDiscoveryDocumentValidation.'\n      );\n    }\n\n    return errors;\n  }\n\n  protected validateUrlForHttps(url: string): boolean {\n    if (!url) {\n      return true;\n    }\n\n    const lcUrl = url.toLowerCase();\n\n    if (this.requireHttps === false) {\n      return true;\n    }\n\n    if (\n      (lcUrl.match(/^http:\\/\\/localhost($|[:/])/) ||\n        lcUrl.match(/^http:\\/\\/localhost($|[:/])/)) &&\n      this.requireHttps === 'remoteOnly'\n    ) {\n      return true;\n    }\n\n    return lcUrl.startsWith('https://');\n  }\n\n  protected assertUrlNotNullAndCorrectProtocol(\n    url: string | undefined,\n    description: string\n  ) {\n    if (!url) {\n      throw new Error(`'${description}' should not be null`);\n    }\n    if (!this.validateUrlForHttps(url)) {\n      throw new Error(\n        `'${description}' must use HTTPS (with TLS), or config value for property 'requireHttps' must be set to 'false' and allow HTTP (without TLS).`\n      );\n    }\n  }\n\n  protected validateUrlAgainstIssuer(url: string) {\n    if (!this.strictDiscoveryDocumentValidation) {\n      return true;\n    }\n    if (!url) {\n      return true;\n    }\n    return url.toLowerCase().startsWith(this.issuer.toLowerCase());\n  }\n\n  protected setupRefreshTimer(): void {\n    if (typeof window === 'undefined') {\n      this.debug('timer not supported on this plattform');\n      return;\n    }\n\n    if (this.hasValidIdToken() || this.hasValidAccessToken()) {\n      this.clearAccessTokenTimer();\n      this.clearIdTokenTimer();\n      this.setupExpirationTimers();\n    }\n\n    if (this.tokenReceivedSubscription)\n      this.tokenReceivedSubscription.unsubscribe();\n\n    this.tokenReceivedSubscription = this.events\n      .pipe(filter((e) => e.type === 'token_received'))\n      .subscribe(() => {\n        this.clearAccessTokenTimer();\n        this.clearIdTokenTimer();\n        this.setupExpirationTimers();\n      });\n  }\n\n  protected setupExpirationTimers(): void {\n    if (this.hasValidAccessToken()) {\n      this.setupAccessTokenTimer();\n    }\n\n    if (!this.disableIdTokenTimer && this.hasValidIdToken()) {\n      this.setupIdTokenTimer();\n    }\n  }\n\n  protected setupAccessTokenTimer(): void {\n    const expiration = this.getAccessTokenExpiration();\n    const storedAt = this.getAccessTokenStoredAt();\n    const timeout = this.calcTimeout(storedAt, expiration);\n\n    this.ngZone.runOutsideAngular(() => {\n      this.accessTokenTimeoutSubscription = of(\n        new OAuthInfoEvent('token_expires', 'access_token')\n      )\n        .pipe(delay(timeout))\n        .subscribe((e) => {\n          this.ngZone.run(() => {\n            this.eventsSubject.next(e);\n          });\n        });\n    });\n  }\n\n  protected setupIdTokenTimer(): void {\n    const expiration = this.getIdTokenExpiration();\n    const storedAt = this.getIdTokenStoredAt();\n    const timeout = this.calcTimeout(storedAt, expiration);\n\n    this.ngZone.runOutsideAngular(() => {\n      this.idTokenTimeoutSubscription = of(\n        new OAuthInfoEvent('token_expires', 'id_token')\n      )\n        .pipe(delay(timeout))\n        .subscribe((e) => {\n          this.ngZone.run(() => {\n            this.eventsSubject.next(e);\n          });\n        });\n    });\n  }\n\n  /**\n   * Stops timers for automatic refresh.\n   * To restart it, call setupAutomaticSilentRefresh again.\n   */\n  public stopAutomaticRefresh() {\n    this.clearAccessTokenTimer();\n    this.clearIdTokenTimer();\n    this.clearAutomaticRefreshTimer();\n  }\n\n  protected clearAccessTokenTimer(): void {\n    if (this.accessTokenTimeoutSubscription) {\n      this.accessTokenTimeoutSubscription.unsubscribe();\n    }\n  }\n\n  protected clearIdTokenTimer(): void {\n    if (this.idTokenTimeoutSubscription) {\n      this.idTokenTimeoutSubscription.unsubscribe();\n    }\n  }\n\n  protected clearAutomaticRefreshTimer(): void {\n    if (this.automaticRefreshSubscription) {\n      this.automaticRefreshSubscription.unsubscribe();\n    }\n  }\n\n  protected calcTimeout(storedAt: number, expiration: number): number {\n    const now = this.dateTimeService.now();\n    const delta =\n      (expiration - storedAt) * this.timeoutFactor - (now - storedAt);\n    const duration = Math.max(0, delta);\n    const maxTimeoutValue = 2_147_483_647;\n    return duration > maxTimeoutValue ? maxTimeoutValue : duration;\n  }\n\n  /**\n   * DEPRECATED. Use a provider for OAuthStorage instead:\n   *\n   * { provide: OAuthStorage, useFactory: oAuthStorageFactory }\n   * export function oAuthStorageFactory(): OAuthStorage { return localStorage; }\n   * Sets a custom storage used to store the received\n   * tokens on client side. By default, the browser's\n   * sessionStorage is used.\n   * @ignore\n   *\n   * @param storage\n   */\n  public setStorage(storage: OAuthStorage): void {\n    this._storage = storage;\n    this.configChanged();\n  }\n\n  /**\n   * Loads the discovery document to configure most\n   * properties of this service. The url of the discovery\n   * document is infered from the issuer's url according\n   * to the OpenId Connect spec. To use another url you\n   * can pass it to to optional parameter fullUrl.\n   *\n   * @param fullUrl\n   */\n  public loadDiscoveryDocument(\n    fullUrl: string = null\n  ): Promise<OAuthSuccessEvent> {\n    return new Promise((resolve, reject) => {\n      if (!fullUrl) {\n        fullUrl = this.issuer || '';\n        if (!fullUrl.endsWith('/')) {\n          fullUrl += '/';\n        }\n        fullUrl += '.well-known/openid-configuration';\n      }\n\n      if (!this.validateUrlForHttps(fullUrl)) {\n        reject(\n          \"issuer  must use HTTPS (with TLS), or config value for property 'requireHttps' must be set to 'false' and allow HTTP (without TLS).\"\n        );\n        return;\n      }\n\n      this.http.get<OidcDiscoveryDoc>(fullUrl).subscribe(\n        (doc) => {\n          if (!this.validateDiscoveryDocument(doc)) {\n            this.eventsSubject.next(\n              new OAuthErrorEvent('discovery_document_validation_error', null)\n            );\n            reject('discovery_document_validation_error');\n            return;\n          }\n\n          this.loginUrl = doc.authorization_endpoint;\n          this.logoutUrl = doc.end_session_endpoint || this.logoutUrl;\n          this.grantTypesSupported = doc.grant_types_supported;\n          this.issuer = doc.issuer;\n          this.tokenEndpoint = doc.token_endpoint;\n          this.userinfoEndpoint =\n            doc.userinfo_endpoint || this.userinfoEndpoint;\n          this.jwksUri = doc.jwks_uri;\n          this.sessionCheckIFrameUrl =\n            doc.check_session_iframe || this.sessionCheckIFrameUrl;\n\n          this.discoveryDocumentLoaded = true;\n          this.discoveryDocumentLoadedSubject.next(doc);\n          this.revocationEndpoint =\n            doc.revocation_endpoint || this.revocationEndpoint;\n\n          if (this.sessionChecksEnabled) {\n            this.restartSessionChecksIfStillLoggedIn();\n          }\n\n          this.loadJwks()\n            .then((jwks) => {\n              const result: object = {\n                discoveryDocument: doc,\n                jwks: jwks,\n              };\n\n              const event = new OAuthSuccessEvent(\n                'discovery_document_loaded',\n                result\n              );\n              this.eventsSubject.next(event);\n              resolve(event);\n              return;\n            })\n            .catch((err) => {\n              this.eventsSubject.next(\n                new OAuthErrorEvent('discovery_document_load_error', err)\n              );\n              reject(err);\n              return;\n            });\n        },\n        (err) => {\n          this.logger.error('error loading discovery document', err);\n          this.eventsSubject.next(\n            new OAuthErrorEvent('discovery_document_load_error', err)\n          );\n          reject(err);\n        }\n      );\n    });\n  }\n\n  protected loadJwks(): Promise<object> {\n    return new Promise<object>((resolve, reject) => {\n      if (this.jwksUri) {\n        this.http.get(this.jwksUri).subscribe(\n          (jwks) => {\n            this.jwks = jwks;\n            // this.eventsSubject.next(\n            //   new OAuthSuccessEvent('discovery_document_loaded')\n            // );\n            resolve(jwks);\n          },\n          (err) => {\n            this.logger.error('error loading jwks', err);\n            this.eventsSubject.next(\n              new OAuthErrorEvent('jwks_load_error', err)\n            );\n            reject(err);\n          }\n        );\n      } else {\n        resolve(null);\n      }\n    });\n  }\n\n  protected validateDiscoveryDocument(doc: OidcDiscoveryDoc): boolean {\n    let errors: string[];\n\n    if (!this.skipIssuerCheck && doc.issuer !== this.issuer) {\n      this.logger.error(\n        'invalid issuer in discovery document',\n        'expected: ' + this.issuer,\n        'current: ' + doc.issuer\n      );\n      return false;\n    }\n\n    errors = this.validateUrlFromDiscoveryDocument(doc.authorization_endpoint);\n    if (errors.length > 0) {\n      this.logger.error(\n        'error validating authorization_endpoint in discovery document',\n        errors\n      );\n      return false;\n    }\n\n    errors = this.validateUrlFromDiscoveryDocument(doc.end_session_endpoint);\n    if (errors.length > 0) {\n      this.logger.error(\n        'error validating end_session_endpoint in discovery document',\n        errors\n      );\n      return false;\n    }\n\n    errors = this.validateUrlFromDiscoveryDocument(doc.token_endpoint);\n    if (errors.length > 0) {\n      this.logger.error(\n        'error validating token_endpoint in discovery document',\n        errors\n      );\n    }\n\n    errors = this.validateUrlFromDiscoveryDocument(doc.revocation_endpoint);\n    if (errors.length > 0) {\n      this.logger.error(\n        'error validating revocation_endpoint in discovery document',\n        errors\n      );\n    }\n\n    errors = this.validateUrlFromDiscoveryDocument(doc.userinfo_endpoint);\n    if (errors.length > 0) {\n      this.logger.error(\n        'error validating userinfo_endpoint in discovery document',\n        errors\n      );\n      return false;\n    }\n\n    errors = this.validateUrlFromDiscoveryDocument(doc.jwks_uri);\n    if (errors.length > 0) {\n      this.logger.error(\n        'error validating jwks_uri in discovery document',\n        errors\n      );\n      return false;\n    }\n\n    if (this.sessionChecksEnabled && !doc.check_session_iframe) {\n      this.logger.warn(\n        'sessionChecksEnabled is activated but discovery document' +\n          ' does not contain a check_session_iframe field'\n      );\n    }\n\n    return true;\n  }\n\n  /**\n   * Uses password flow to exchange userName and password for an\n   * access_token. After receiving the access_token, this method\n   * uses it to query the userinfo endpoint in order to get information\n   * about the user in question.\n   *\n   * When using this, make sure that the property oidc is set to false.\n   * Otherwise stricter validations take place that make this operation\n   * fail.\n   *\n   * @param userName\n   * @param password\n   * @param headers Optional additional http-headers.\n   */\n  public fetchTokenUsingPasswordFlowAndLoadUserProfile(\n    userName: string,\n    password: string,\n    headers: HttpHeaders = new HttpHeaders()\n  ): Promise<object> {\n    return this.fetchTokenUsingPasswordFlow(userName, password, headers).then(\n      () => this.loadUserProfile()\n    );\n  }\n\n  /**\n   * Loads the user profile by accessing the user info endpoint defined by OpenId Connect.\n   *\n   * When using this with OAuth2 password flow, make sure that the property oidc is set to false.\n   * Otherwise stricter validations take place that make this operation fail.\n   */\n  public loadUserProfile(): Promise<object> {\n    if (!this.hasValidAccessToken()) {\n      throw new Error('Can not load User Profile without access_token');\n    }\n    if (!this.validateUrlForHttps(this.userinfoEndpoint)) {\n      throw new Error(\n        \"userinfoEndpoint must use HTTPS (with TLS), or config value for property 'requireHttps' must be set to 'false' and allow HTTP (without TLS).\"\n      );\n    }\n\n    return new Promise((resolve, reject) => {\n      const headers = new HttpHeaders().set(\n        'Authorization',\n        'Bearer ' + this.getAccessToken()\n      );\n\n      this.http\n        .get(this.userinfoEndpoint, {\n          headers,\n          observe: 'response',\n          responseType: 'text',\n        })\n        .subscribe(\n          (response) => {\n            this.debug('userinfo received', JSON.stringify(response));\n            if (\n              response.headers\n                .get('content-type')\n                .startsWith('application/json')\n            ) {\n              let info = JSON.parse(response.body);\n              const existingClaims = this.getIdentityClaims() || {};\n\n              if (!this.skipSubjectCheck) {\n                if (\n                  this.oidc &&\n                  (!existingClaims['sub'] || info.sub !== existingClaims['sub'])\n                ) {\n                  const err =\n                    'if property oidc is true, the received user-id (sub) has to be the user-id ' +\n                    'of the user that has logged in with oidc.\\n' +\n                    'if you are not using oidc but just oauth2 password flow set oidc to false';\n\n                  reject(err);\n                  return;\n                }\n              }\n\n              info = Object.assign({}, existingClaims, info);\n\n              this._storage.setItem(\n                'id_token_claims_obj',\n                JSON.stringify(info)\n              );\n              this.eventsSubject.next(\n                new OAuthSuccessEvent('user_profile_loaded')\n              );\n              resolve({ info });\n            } else {\n              this.debug('userinfo is not JSON, treating it as JWE/JWS');\n              this.eventsSubject.next(\n                new OAuthSuccessEvent('user_profile_loaded')\n              );\n              resolve(JSON.parse(response.body));\n            }\n          },\n          (err) => {\n            this.logger.error('error loading user info', err);\n            this.eventsSubject.next(\n              new OAuthErrorEvent('user_profile_load_error', err)\n            );\n            reject(err);\n          }\n        );\n    });\n  }\n\n  /**\n   * Uses password flow to exchange userName and password for an access_token.\n   * @param userName\n   * @param password\n   * @param headers Optional additional http-headers.\n   */\n  public fetchTokenUsingPasswordFlow(\n    userName: string,\n    password: string,\n    headers: HttpHeaders = new HttpHeaders()\n  ): Promise<TokenResponse> {\n    const parameters = {\n      username: userName,\n      password: password,\n    };\n    return this.fetchTokenUsingGrant('password', parameters, headers);\n  }\n\n  /**\n   * Uses a custom grant type to retrieve tokens.\n   * @param grantType Grant type.\n   * @param parameters Parameters to pass.\n   * @param headers Optional additional HTTP headers.\n   */\n  public fetchTokenUsingGrant(\n    grantType: string,\n    parameters: object,\n    headers: HttpHeaders = new HttpHeaders()\n  ): Promise<TokenResponse> {\n    this.assertUrlNotNullAndCorrectProtocol(\n      this.tokenEndpoint,\n      'tokenEndpoint'\n    );\n\n    /**\n     * A `HttpParameterCodec` that uses `encodeURIComponent` and `decodeURIComponent` to\n     * serialize and parse URL parameter keys and values.\n     *\n     * @stable\n     */\n    let params = new HttpParams({ encoder: new WebHttpUrlEncodingCodec() })\n      .set('grant_type', grantType)\n      .set('scope', this.scope);\n\n    if (this.useHttpBasicAuth) {\n      const header = btoa(`${this.clientId}:${this.dummyClientSecret}`);\n      headers = headers.set('Authorization', 'Basic ' + header);\n    }\n\n    if (!this.useHttpBasicAuth) {\n      params = params.set('client_id', this.clientId);\n    }\n\n    if (!this.useHttpBasicAuth && this.dummyClientSecret) {\n      params = params.set('client_secret', this.dummyClientSecret);\n    }\n\n    if (this.customQueryParams) {\n      for (const key of Object.getOwnPropertyNames(this.customQueryParams)) {\n        params = params.set(key, this.customQueryParams[key]);\n      }\n    }\n\n    // set explicit parameters last, to allow overwriting\n    for (const key of Object.keys(parameters)) {\n      params = params.set(key, parameters[key]);\n    }\n\n    headers = headers.set('Content-Type', 'application/x-www-form-urlencoded');\n\n    return new Promise((resolve, reject) => {\n      this.http\n        .post<TokenResponse>(this.tokenEndpoint, params, { headers })\n        .subscribe(\n          (tokenResponse) => {\n            this.debug('tokenResponse', tokenResponse);\n            this.storeAccessTokenResponse(\n              tokenResponse.access_token,\n              tokenResponse.refresh_token,\n              tokenResponse.expires_in ||\n                this.fallbackAccessTokenExpirationTimeInSec,\n              tokenResponse.scope,\n              this.extractRecognizedCustomParameters(tokenResponse)\n            );\n            if (this.oidc && tokenResponse.id_token) {\n              this.processIdToken(\n                tokenResponse.id_token,\n                tokenResponse.access_token\n              ).then((result) => {\n                this.storeIdToken(result);\n                resolve(tokenResponse);\n              });\n            }\n            this.eventsSubject.next(new OAuthSuccessEvent('token_received'));\n            resolve(tokenResponse);\n          },\n          (err) => {\n            this.logger.error('Error performing ${grantType} flow', err);\n            this.eventsSubject.next(new OAuthErrorEvent('token_error', err));\n            reject(err);\n          }\n        );\n    });\n  }\n\n  /**\n   * Refreshes the token using a refresh_token.\n   * This does not work for implicit flow, b/c\n   * there is no refresh_token in this flow.\n   * A solution for this is provided by the\n   * method silentRefresh.\n   */\n  public refreshToken(): Promise<TokenResponse> {\n    this.assertUrlNotNullAndCorrectProtocol(\n      this.tokenEndpoint,\n      'tokenEndpoint'\n    );\n    return new Promise((resolve, reject) => {\n      let params = new HttpParams({ encoder: new WebHttpUrlEncodingCodec() })\n        .set('grant_type', 'refresh_token')\n        .set('scope', this.scope)\n        .set('refresh_token', this._storage.getItem('refresh_token'));\n\n      let headers = new HttpHeaders().set(\n        'Content-Type',\n        'application/x-www-form-urlencoded'\n      );\n\n      if (this.useHttpBasicAuth) {\n        const header = btoa(`${this.clientId}:${this.dummyClientSecret}`);\n        headers = headers.set('Authorization', 'Basic ' + header);\n      }\n\n      if (!this.useHttpBasicAuth) {\n        params = params.set('client_id', this.clientId);\n      }\n\n      if (!this.useHttpBasicAuth && this.dummyClientSecret) {\n        params = params.set('client_secret', this.dummyClientSecret);\n      }\n\n      if (this.customQueryParams) {\n        for (const key of Object.getOwnPropertyNames(this.customQueryParams)) {\n          params = params.set(key, this.customQueryParams[key]);\n        }\n      }\n\n      this.http\n        .post<TokenResponse>(this.tokenEndpoint, params, { headers })\n        .pipe(\n          switchMap((tokenResponse) => {\n            if (this.oidc && tokenResponse.id_token) {\n              return from(\n                this.processIdToken(\n                  tokenResponse.id_token,\n                  tokenResponse.access_token,\n                  true\n                )\n              ).pipe(\n                tap((result) => this.storeIdToken(result)),\n                map(() => tokenResponse)\n              );\n            } else {\n              return of(tokenResponse);\n            }\n          })\n        )\n        .subscribe(\n          (tokenResponse) => {\n            this.debug('refresh tokenResponse', tokenResponse);\n            this.storeAccessTokenResponse(\n              tokenResponse.access_token,\n              tokenResponse.refresh_token,\n              tokenResponse.expires_in ||\n                this.fallbackAccessTokenExpirationTimeInSec,\n              tokenResponse.scope,\n              this.extractRecognizedCustomParameters(tokenResponse)\n            );\n\n            this.eventsSubject.next(new OAuthSuccessEvent('token_received'));\n            this.eventsSubject.next(new OAuthSuccessEvent('token_refreshed'));\n            resolve(tokenResponse);\n          },\n          (err) => {\n            this.logger.error('Error refreshing token', err);\n            this.eventsSubject.next(\n              new OAuthErrorEvent('token_refresh_error', err)\n            );\n            reject(err);\n          }\n        );\n    });\n  }\n\n  protected removeSilentRefreshEventListener(): void {\n    if (this.silentRefreshPostMessageEventListener) {\n      window.removeEventListener(\n        'message',\n        this.silentRefreshPostMessageEventListener\n      );\n      this.silentRefreshPostMessageEventListener = null;\n    }\n  }\n\n  protected setupSilentRefreshEventListener(): void {\n    this.removeSilentRefreshEventListener();\n\n    this.silentRefreshPostMessageEventListener = (e: MessageEvent) => {\n      const message = this.processMessageEventMessage(e);\n\n      if (this.checkOrigin && e.origin !== location.origin) {\n        console.error('wrong origin requested silent refresh!');\n      }\n\n      this.tryLogin({\n        customHashFragment: message,\n        preventClearHashAfterLogin: true,\n        customRedirectUri: this.silentRefreshRedirectUri || this.redirectUri,\n      }).catch((err) =>\n        this.debug('tryLogin during silent refresh failed', err)\n      );\n    };\n\n    window.addEventListener(\n      'message',\n      this.silentRefreshPostMessageEventListener\n    );\n  }\n\n  /**\n   * Performs a silent refresh for implicit flow.\n   * Use this method to get new tokens when/before\n   * the existing tokens expire.\n   */\n  public silentRefresh(\n    params: object = {},\n    noPrompt = true\n  ): Promise<OAuthEvent> {\n    const claims: object = this.getIdentityClaims() || {};\n\n    if (this.useIdTokenHintForSilentRefresh && this.hasValidIdToken()) {\n      params['id_token_hint'] = this.getIdToken();\n    }\n\n    if (!this.validateUrlForHttps(this.loginUrl)) {\n      throw new Error(\n        \"loginUrl  must use HTTPS (with TLS), or config value for property 'requireHttps' must be set to 'false' and allow HTTP (without TLS).\"\n      );\n    }\n\n    if (typeof this.document === 'undefined') {\n      throw new Error('silent refresh is not supported on this platform');\n    }\n\n    const existingIframe = this.document.getElementById(\n      this.silentRefreshIFrameName\n    );\n\n    if (existingIframe) {\n      this.document.body.removeChild(existingIframe);\n    }\n\n    this.silentRefreshSubject = claims['sub'];\n\n    const iframe = this.document.createElement('iframe');\n    iframe.id = this.silentRefreshIFrameName;\n\n    this.setupSilentRefreshEventListener();\n\n    const redirectUri = this.silentRefreshRedirectUri || this.redirectUri;\n    this.createLoginUrl(null, null, redirectUri, noPrompt, params).then(\n      (url) => {\n        iframe.setAttribute('src', url);\n\n        if (!this.silentRefreshShowIFrame) {\n          iframe.style['display'] = 'none';\n        }\n        this.document.body.appendChild(iframe);\n      }\n    );\n\n    const errors = this.events.pipe(\n      filter((e) => e instanceof OAuthErrorEvent),\n      first()\n    );\n    const success = this.events.pipe(\n      filter((e) => e.type === 'token_received'),\n      first()\n    );\n    const timeout = of(\n      new OAuthErrorEvent('silent_refresh_timeout', null)\n    ).pipe(delay(this.silentRefreshTimeout));\n\n    return race([errors, success, timeout])\n      .pipe(\n        map((e) => {\n          if (e instanceof OAuthErrorEvent) {\n            if (e.type === 'silent_refresh_timeout') {\n              this.eventsSubject.next(e);\n            } else {\n              e = new OAuthErrorEvent('silent_refresh_error', e);\n              this.eventsSubject.next(e);\n            }\n            throw e;\n          } else if (e.type === 'token_received') {\n            e = new OAuthSuccessEvent('silently_refreshed');\n            this.eventsSubject.next(e);\n          }\n          return e;\n        })\n      )\n      .toPromise();\n  }\n\n  /**\n   * This method exists for backwards compatibility.\n   * {@link OAuthService#initLoginFlowInPopup} handles both code\n   * and implicit flows.\n   */\n  public initImplicitFlowInPopup(options?: {\n    height?: number;\n    width?: number;\n    windowRef?: Window;\n  }) {\n    return this.initLoginFlowInPopup(options);\n  }\n\n  public initLoginFlowInPopup(options?: {\n    height?: number;\n    width?: number;\n    windowRef?: Window;\n  }) {\n    options = options || {};\n    return this.createLoginUrl(\n      null,\n      null,\n      this.silentRefreshRedirectUri,\n      false,\n      {\n        display: 'popup',\n      }\n    ).then((url) => {\n      return new Promise((resolve, reject) => {\n        /**\n         * Error handling section\n         */\n        const checkForPopupClosedInterval = 500;\n\n        let windowRef = null;\n        // If we got no window reference we open a window\n        // else we are using the window already opened\n        if (!options.windowRef) {\n          windowRef = window.open(\n            url,\n            'ngx-oauth2-oidc-login',\n            this.calculatePopupFeatures(options)\n          );\n        } else if (options.windowRef && !options.windowRef.closed) {\n          windowRef = options.windowRef;\n          windowRef.location.href = url;\n        }\n\n        let checkForPopupClosedTimer: any;\n\n        const tryLogin = (hash: string) => {\n          this.tryLogin({\n            customHashFragment: hash,\n            preventClearHashAfterLogin: true,\n            customRedirectUri: this.silentRefreshRedirectUri,\n          }).then(\n            () => {\n              cleanup();\n              resolve(true);\n            },\n            (err) => {\n              cleanup();\n              reject(err);\n            }\n          );\n        };\n\n        const checkForPopupClosed = () => {\n          if (!windowRef || windowRef.closed) {\n            cleanup();\n            reject(new OAuthErrorEvent('popup_closed', {}));\n          }\n        };\n        if (!windowRef) {\n          reject(new OAuthErrorEvent('popup_blocked', {}));\n        } else {\n          checkForPopupClosedTimer = window.setInterval(\n            checkForPopupClosed,\n            checkForPopupClosedInterval\n          );\n        }\n\n        const cleanup = () => {\n          window.clearInterval(checkForPopupClosedTimer);\n          window.removeEventListener('storage', storageListener);\n          window.removeEventListener('message', listener);\n          if (windowRef !== null) {\n            windowRef.close();\n          }\n          windowRef = null;\n        };\n\n        const listener = (e: MessageEvent) => {\n          const message = this.processMessageEventMessage(e);\n\n          if (message && message !== null) {\n            window.removeEventListener('storage', storageListener);\n            tryLogin(message);\n          } else {\n            console.log('false event firing');\n          }\n        };\n\n        const storageListener = (event: StorageEvent) => {\n          if (event.key === 'auth_hash') {\n            window.removeEventListener('message', listener);\n            tryLogin(event.newValue);\n          }\n        };\n\n        window.addEventListener('message', listener);\n        window.addEventListener('storage', storageListener);\n      });\n    });\n  }\n\n  protected calculatePopupFeatures(options: {\n    height?: number;\n    width?: number;\n  }): string {\n    // Specify an static height and width and calculate centered position\n\n    const height = options.height || 470;\n    const width = options.width || 500;\n    const left = window.screenLeft + (window.outerWidth - width) / 2;\n    const top = window.screenTop + (window.outerHeight - height) / 2;\n    return `location=no,toolbar=no,width=${width},height=${height},top=${top},left=${left}`;\n  }\n\n  protected processMessageEventMessage(e: MessageEvent): string {\n    let expectedPrefix = '#';\n\n    if (this.silentRefreshMessagePrefix) {\n      expectedPrefix += this.silentRefreshMessagePrefix;\n    }\n\n    if (!e || !e.data || typeof e.data !== 'string') {\n      return;\n    }\n\n    const prefixedMessage: string = e.data;\n\n    if (!prefixedMessage.startsWith(expectedPrefix)) {\n      return;\n    }\n\n    return '#' + prefixedMessage.substr(expectedPrefix.length);\n  }\n\n  protected canPerformSessionCheck(): boolean {\n    if (!this.sessionChecksEnabled) {\n      return false;\n    }\n    if (!this.sessionCheckIFrameUrl) {\n      console.warn(\n        'sessionChecksEnabled is activated but there is no sessionCheckIFrameUrl'\n      );\n      return false;\n    }\n    const sessionState = this.getSessionState();\n    if (!sessionState) {\n      console.warn(\n        'sessionChecksEnabled is activated but there is no session_state'\n      );\n      return false;\n    }\n    if (typeof this.document === 'undefined') {\n      return false;\n    }\n\n    return true;\n  }\n\n  protected setupSessionCheckEventListener(): void {\n    this.removeSessionCheckEventListener();\n\n    this.sessionCheckEventListener = (e: MessageEvent) => {\n      const origin = e.origin.toLowerCase();\n      const issuer = this.issuer.toLowerCase();\n\n      this.debug('sessionCheckEventListener');\n\n      if (!issuer.startsWith(origin)) {\n        this.debug(\n          'sessionCheckEventListener',\n          'wrong origin',\n          origin,\n          'expected',\n          issuer,\n          'event',\n          e\n        );\n\n        return;\n      }\n\n      // only run in Angular zone if it is 'changed' or 'error'\n      switch (e.data) {\n        case 'unchanged':\n          this.ngZone.run(() => {\n            this.handleSessionUnchanged();\n          });\n          break;\n        case 'changed':\n          this.ngZone.run(() => {\n            this.handleSessionChange();\n          });\n          break;\n        case 'error':\n          this.ngZone.run(() => {\n            this.handleSessionError();\n          });\n          break;\n      }\n\n      this.debug('got info from session check inframe', e);\n    };\n\n    // prevent Angular from refreshing the view on every message (runs in intervals)\n    this.ngZone.runOutsideAngular(() => {\n      window.addEventListener('message', this.sessionCheckEventListener);\n    });\n  }\n\n  protected handleSessionUnchanged(): void {\n    this.debug('session check', 'session unchanged');\n    this.eventsSubject.next(new OAuthInfoEvent('session_unchanged'));\n  }\n\n  protected handleSessionChange(): void {\n    this.eventsSubject.next(new OAuthInfoEvent('session_changed'));\n    this.stopSessionCheckTimer();\n\n    if (!this.useSilentRefresh && this.responseType === 'code') {\n      this.refreshToken()\n        .then(() => {\n          this.debug('token refresh after session change worked');\n        })\n        .catch(() => {\n          this.debug('token refresh did not work after session changed');\n          this.eventsSubject.next(new OAuthInfoEvent('session_terminated'));\n          this.logOut(true);\n        });\n    } else if (this.silentRefreshRedirectUri) {\n      this.silentRefresh().catch(() =>\n        this.debug('silent refresh failed after session changed')\n      );\n      this.waitForSilentRefreshAfterSessionChange();\n    } else {\n      this.eventsSubject.next(new OAuthInfoEvent('session_terminated'));\n      this.logOut(true);\n    }\n  }\n\n  protected waitForSilentRefreshAfterSessionChange(): void {\n    this.events\n      .pipe(\n        filter(\n          (e: OAuthEvent) =>\n            e.type === 'silently_refreshed' ||\n            e.type === 'silent_refresh_timeout' ||\n            e.type === 'silent_refresh_error'\n        ),\n        first()\n      )\n      .subscribe((e) => {\n        if (e.type !== 'silently_refreshed') {\n          this.debug('silent refresh did not work after session changed');\n          this.eventsSubject.next(new OAuthInfoEvent('session_terminated'));\n          this.logOut(true);\n        }\n      });\n  }\n\n  protected handleSessionError(): void {\n    this.stopSessionCheckTimer();\n    this.eventsSubject.next(new OAuthInfoEvent('session_error'));\n  }\n\n  protected removeSessionCheckEventListener(): void {\n    if (this.sessionCheckEventListener) {\n      window.removeEventListener('message', this.sessionCheckEventListener);\n      this.sessionCheckEventListener = null;\n    }\n  }\n\n  protected initSessionCheck(): void {\n    if (!this.canPerformSessionCheck()) {\n      return;\n    }\n\n    const existingIframe = this.document.getElementById(\n      this.sessionCheckIFrameName\n    );\n    if (existingIframe) {\n      this.document.body.removeChild(existingIframe);\n    }\n\n    const iframe = this.document.createElement('iframe');\n    iframe.id = this.sessionCheckIFrameName;\n\n    this.setupSessionCheckEventListener();\n\n    const url = this.sessionCheckIFrameUrl;\n    iframe.setAttribute('src', url);\n    iframe.style.display = 'none';\n    this.document.body.appendChild(iframe);\n\n    this.startSessionCheckTimer();\n  }\n\n  protected startSessionCheckTimer(): void {\n    this.stopSessionCheckTimer();\n    this.ngZone.runOutsideAngular(() => {\n      this.sessionCheckTimer = setInterval(\n        this.checkSession.bind(this),\n        this.sessionCheckIntervall\n      );\n    });\n  }\n\n  protected stopSessionCheckTimer(): void {\n    if (this.sessionCheckTimer) {\n      clearInterval(this.sessionCheckTimer);\n      this.sessionCheckTimer = null;\n    }\n  }\n\n  public checkSession(): void {\n    const iframe: any = this.document.getElementById(\n      this.sessionCheckIFrameName\n    );\n\n    if (!iframe) {\n      this.logger.warn(\n        'checkSession did not find iframe',\n        this.sessionCheckIFrameName\n      );\n    }\n\n    const sessionState = this.getSessionState();\n\n    if (!sessionState) {\n      this.stopSessionCheckTimer();\n    }\n\n    const message = this.clientId + ' ' + sessionState;\n    iframe.contentWindow.postMessage(message, this.issuer);\n  }\n\n  protected async createLoginUrl(\n    state = '',\n    loginHint = '',\n    customRedirectUri = '',\n    noPrompt = false,\n    params: object = {}\n  ): Promise<string> {\n    const that = this; // eslint-disable-line @typescript-eslint/no-this-alias\n\n    let redirectUri: string;\n\n    if (customRedirectUri) {\n      redirectUri = customRedirectUri;\n    } else {\n      redirectUri = this.redirectUri;\n    }\n\n    const nonce = await this.createAndSaveNonce();\n\n    if (state) {\n      state =\n        nonce + this.config.nonceStateSeparator + encodeURIComponent(state);\n    } else {\n      state = nonce;\n    }\n\n    if (!this.requestAccessToken && !this.oidc) {\n      throw new Error('Either requestAccessToken or oidc or both must be true');\n    }\n\n    if (this.config.responseType) {\n      this.responseType = this.config.responseType;\n    } else {\n      if (this.oidc && this.requestAccessToken) {\n        this.responseType = 'id_token token';\n      } else if (this.oidc && !this.requestAccessToken) {\n        this.responseType = 'id_token';\n      } else {\n        this.responseType = 'token';\n      }\n    }\n\n    const seperationChar = that.loginUrl.indexOf('?') > -1 ? '&' : '?';\n\n    let scope = that.scope;\n\n    if (this.oidc && !scope.match(/(^|\\s)openid($|\\s)/)) {\n      scope = 'openid ' + scope;\n    }\n\n    let url =\n      that.loginUrl +\n      seperationChar +\n      'response_type=' +\n      encodeURIComponent(that.responseType) +\n      '&client_id=' +\n      encodeURIComponent(that.clientId) +\n      '&state=' +\n      encodeURIComponent(state) +\n      '&redirect_uri=' +\n      encodeURIComponent(redirectUri) +\n      '&scope=' +\n      encodeURIComponent(scope);\n\n    if (this.responseType.includes('code') && !this.disablePKCE) {\n      const [challenge, verifier] =\n        await this.createChallangeVerifierPairForPKCE();\n\n      if (\n        this.saveNoncesInLocalStorage &&\n        typeof window['localStorage'] !== 'undefined'\n      ) {\n        localStorage.setItem('PKCE_verifier', verifier);\n      } else {\n        this._storage.setItem('PKCE_verifier', verifier);\n      }\n\n      url += '&code_challenge=' + challenge;\n      url += '&code_challenge_method=S256';\n    }\n\n    if (loginHint) {\n      url += '&login_hint=' + encodeURIComponent(loginHint);\n    }\n\n    if (that.resource) {\n      url += '&resource=' + encodeURIComponent(that.resource);\n    }\n\n    if (that.oidc) {\n      url += '&nonce=' + encodeURIComponent(nonce);\n    }\n\n    if (noPrompt) {\n      url += '&prompt=none';\n    }\n\n    for (const key of Object.keys(params)) {\n      url +=\n        '&' + encodeURIComponent(key) + '=' + encodeURIComponent(params[key]);\n    }\n\n    if (this.customQueryParams) {\n      for (const key of Object.getOwnPropertyNames(this.customQueryParams)) {\n        url +=\n          '&' + key + '=' + encodeURIComponent(this.customQueryParams[key]);\n      }\n    }\n\n    return url;\n  }\n\n  initImplicitFlowInternal(\n    additionalState = '',\n    params: string | object = ''\n  ): void {\n    if (this.inImplicitFlow) {\n      return;\n    }\n\n    this.inImplicitFlow = true;\n\n    if (!this.validateUrlForHttps(this.loginUrl)) {\n      throw new Error(\n        \"loginUrl  must use HTTPS (with TLS), or config value for property 'requireHttps' must be set to 'false' and allow HTTP (without TLS).\"\n      );\n    }\n\n    let addParams: object = {};\n    let loginHint: string = null;\n\n    if (typeof params === 'string') {\n      loginHint = params;\n    } else if (typeof params === 'object') {\n      addParams = params;\n    }\n\n    this.createLoginUrl(additionalState, loginHint, null, false, addParams)\n      .then(this.config.openUri)\n      .catch((error) => {\n        console.error('Error in initImplicitFlow', error);\n        this.inImplicitFlow = false;\n      });\n  }\n\n  /**\n   * Starts the implicit flow and redirects to user to\n   * the auth servers' login url.\n   *\n   * @param additionalState Optional state that is passed around.\n   *  You'll find this state in the property `state` after `tryLogin` logged in the user.\n   * @param params Hash with additional parameter. If it is a string, it is used for the\n   *               parameter loginHint (for the sake of compatibility with former versions)\n   */\n  public initImplicitFlow(\n    additionalState = '',\n    params: string | object = ''\n  ): void {\n    if (this.loginUrl !== '') {\n      this.initImplicitFlowInternal(additionalState, params);\n    } else {\n      this.events\n        .pipe(filter((e) => e.type === 'discovery_document_loaded'))\n        .subscribe(() =>\n          this.initImplicitFlowInternal(additionalState, params)\n        );\n    }\n  }\n\n  /**\n   * Reset current implicit flow\n   *\n   * @description This method allows resetting the current implict flow in order to be initialized again.\n   */\n  public resetImplicitFlow(): void {\n    this.inImplicitFlow = false;\n  }\n\n  protected callOnTokenReceivedIfExists(options: LoginOptions): void {\n    const that = this; // eslint-disable-line @typescript-eslint/no-this-alias\n    if (options.onTokenReceived) {\n      const tokenParams = {\n        idClaims: that.getIdentityClaims(),\n        idToken: that.getIdToken(),\n        accessToken: that.getAccessToken(),\n        state: that.state,\n      };\n      options.onTokenReceived(tokenParams);\n    }\n  }\n\n  protected storeAccessTokenResponse(\n    accessToken: string,\n    refreshToken: string,\n    expiresIn: number,\n    grantedScopes: string,\n    customParameters?: Map<string, string>\n  ): void {\n    this._storage.setItem('access_token', accessToken);\n    if (grantedScopes && !Array.isArray(grantedScopes)) {\n      this._storage.setItem(\n        'granted_scopes',\n        JSON.stringify(grantedScopes.split(' '))\n      );\n    } else if (grantedScopes && Array.isArray(grantedScopes)) {\n      this._storage.setItem('granted_scopes', JSON.stringify(grantedScopes));\n    }\n\n    this._storage.setItem(\n      'access_token_stored_at',\n      '' + this.dateTimeService.now()\n    );\n    if (expiresIn) {\n      const expiresInMilliSeconds = expiresIn * 1000;\n      const now = this.dateTimeService.new();\n      const expiresAt = now.getTime() + expiresInMilliSeconds;\n      this._storage.setItem('expires_at', '' + expiresAt);\n    }\n\n    if (refreshToken) {\n      this._storage.setItem('refresh_token', refreshToken);\n    }\n    if (customParameters) {\n      customParameters.forEach((value: string, key: string) => {\n        this._storage.setItem(key, value);\n      });\n    }\n  }\n\n  /**\n   * Delegates to tryLoginImplicitFlow for the sake of competability\n   * @param options Optional options.\n   */\n  public tryLogin(options: LoginOptions = null): Promise<boolean> {\n    if (this.config.responseType === 'code') {\n      return this.tryLoginCodeFlow(options).then(() => true);\n    } else {\n      return this.tryLoginImplicitFlow(options);\n    }\n  }\n\n  private parseQueryString(queryString: string): object {\n    if (!queryString || queryString.length === 0) {\n      return {};\n    }\n\n    if (queryString.charAt(0) === '?') {\n      queryString = queryString.substr(1);\n    }\n\n    return this.urlHelper.parseQueryString(queryString);\n  }\n\n  public async tryLoginCodeFlow(options: LoginOptions = null): Promise<void> {\n    options = options || {};\n\n    const querySource = options.customHashFragment\n      ? options.customHashFragment.substring(1)\n      : window.location.search;\n\n    const parts = this.getCodePartsFromUrl(querySource);\n\n    const code = parts['code'];\n    const state = parts['state'];\n\n    const sessionState = parts['session_state'];\n\n    if (!options.preventClearHashAfterLogin) {\n      const href =\n        location.origin +\n        location.pathname +\n        location.search\n          .replace(/code=[^&$]*/, '')\n          .replace(/scope=[^&$]*/, '')\n          .replace(/state=[^&$]*/, '')\n          .replace(/session_state=[^&$]*/, '')\n          .replace(/^\\?&/, '?')\n          .replace(/&$/, '')\n          .replace(/^\\?$/, '')\n          .replace(/&+/g, '&')\n          .replace(/\\?&/, '?')\n          .replace(/\\?$/, '') +\n        location.hash;\n\n      history.replaceState(null, window.name, href);\n    }\n\n    const [nonceInState, userState] = this.parseState(state);\n    this.state = userState;\n\n    if (parts['error']) {\n      this.debug('error trying to login');\n      this.handleLoginError(options, parts);\n      const err = new OAuthErrorEvent('code_error', {}, parts);\n      this.eventsSubject.next(err);\n      return Promise.reject(err);\n    }\n\n    if (!options.disableNonceCheck) {\n      if (!nonceInState) {\n        this.saveRequestedRoute();\n        return Promise.resolve();\n      }\n\n      if (!options.disableOAuth2StateCheck) {\n        const success = this.validateNonce(nonceInState);\n        if (!success) {\n          const event = new OAuthErrorEvent('invalid_nonce_in_state', null);\n          this.eventsSubject.next(event);\n          return Promise.reject(event);\n        }\n      }\n    }\n\n    this.storeSessionState(sessionState);\n\n    if (code) {\n      await this.getTokenFromCode(code, options);\n      this.restoreRequestedRoute();\n      return Promise.resolve();\n    } else {\n      return Promise.resolve();\n    }\n  }\n\n  private saveRequestedRoute() {\n    if (this.config.preserveRequestedRoute) {\n      this._storage.setItem(\n        'requested_route',\n        window.location.pathname + window.location.search\n      );\n    }\n  }\n\n  private restoreRequestedRoute() {\n    const requestedRoute = this._storage.getItem('requested_route');\n    if (requestedRoute) {\n      history.replaceState(null, '', window.location.origin + requestedRoute);\n    }\n  }\n\n  /**\n   * Retrieve the returned auth code from the redirect uri that has been called.\n   * If required also check hash, as we could use hash location strategy.\n   */\n  private getCodePartsFromUrl(queryString: string): object {\n    if (!queryString || queryString.length === 0) {\n      return this.urlHelper.getHashFragmentParams();\n    }\n\n    // normalize query string\n    if (queryString.charAt(0) === '?') {\n      queryString = queryString.substr(1);\n    }\n\n    return this.urlHelper.parseQueryString(queryString);\n  }\n\n  /**\n   * Get token using an intermediate code. Works for the Authorization Code flow.\n   */\n  private getTokenFromCode(\n    code: string,\n    options: LoginOptions\n  ): Promise<object> {\n    let params = new HttpParams({ encoder: new WebHttpUrlEncodingCodec() })\n      .set('grant_type', 'authorization_code')\n      .set('code', code)\n      .set('redirect_uri', options.customRedirectUri || this.redirectUri);\n\n    if (!this.disablePKCE) {\n      let PKCEVerifier;\n\n      if (\n        this.saveNoncesInLocalStorage &&\n        typeof window['localStorage'] !== 'undefined'\n      ) {\n        PKCEVerifier = localStorage.getItem('PKCE_verifier');\n      } else {\n        PKCEVerifier = this._storage.getItem('PKCE_verifier');\n      }\n\n      if (!PKCEVerifier) {\n        console.warn('No PKCE verifier found in oauth storage!');\n      } else {\n        params = params.set('code_verifier', PKCEVerifier);\n      }\n    }\n\n    return this.fetchAndProcessToken(params, options);\n  }\n\n  private fetchAndProcessToken(\n    params: HttpParams,\n    options: LoginOptions\n  ): Promise<TokenResponse> {\n    options = options || {};\n\n    this.assertUrlNotNullAndCorrectProtocol(\n      this.tokenEndpoint,\n      'tokenEndpoint'\n    );\n    let headers = new HttpHeaders().set(\n      'Content-Type',\n      'application/x-www-form-urlencoded'\n    );\n\n    if (this.useHttpBasicAuth) {\n      const header = btoa(`${this.clientId}:${this.dummyClientSecret}`);\n      headers = headers.set('Authorization', 'Basic ' + header);\n    }\n\n    if (!this.useHttpBasicAuth) {\n      params = params.set('client_id', this.clientId);\n    }\n\n    if (!this.useHttpBasicAuth && this.dummyClientSecret) {\n      params = params.set('client_secret', this.dummyClientSecret);\n    }\n\n    return new Promise((resolve, reject) => {\n      if (this.customQueryParams) {\n        for (const key of Object.getOwnPropertyNames(this.customQueryParams)) {\n          params = params.set(key, this.customQueryParams[key]);\n        }\n      }\n\n      this.http\n        .post<TokenResponse>(this.tokenEndpoint, params, { headers })\n        .subscribe(\n          (tokenResponse) => {\n            this.debug('refresh tokenResponse', tokenResponse);\n            this.storeAccessTokenResponse(\n              tokenResponse.access_token,\n              tokenResponse.refresh_token,\n              tokenResponse.expires_in ||\n                this.fallbackAccessTokenExpirationTimeInSec,\n              tokenResponse.scope,\n              this.extractRecognizedCustomParameters(tokenResponse)\n            );\n\n            if (this.oidc && tokenResponse.id_token) {\n              this.processIdToken(\n                tokenResponse.id_token,\n                tokenResponse.access_token,\n                options.disableNonceCheck\n              )\n                .then((result) => {\n                  this.storeIdToken(result);\n\n                  this.eventsSubject.next(\n                    new OAuthSuccessEvent('token_received')\n                  );\n                  this.eventsSubject.next(\n                    new OAuthSuccessEvent('token_refreshed')\n                  );\n\n                  resolve(tokenResponse);\n                })\n                .catch((reason) => {\n                  this.eventsSubject.next(\n                    new OAuthErrorEvent('token_validation_error', reason)\n                  );\n                  console.error('Error validating tokens');\n                  console.error(reason);\n\n                  reject(reason);\n                });\n            } else {\n              this.eventsSubject.next(new OAuthSuccessEvent('token_received'));\n              this.eventsSubject.next(new OAuthSuccessEvent('token_refreshed'));\n\n              resolve(tokenResponse);\n            }\n          },\n          (err) => {\n            console.error('Error getting token', err);\n            this.eventsSubject.next(\n              new OAuthErrorEvent('token_refresh_error', err)\n            );\n            reject(err);\n          }\n        );\n    });\n  }\n\n  /**\n   * Checks whether there are tokens in the hash fragment\n   * as a result of the implicit flow. These tokens are\n   * parsed, validated and used to sign the user in to the\n   * current client.\n   *\n   * @param options Optional options.\n   */\n  public tryLoginImplicitFlow(options: LoginOptions = null): Promise<boolean> {\n    options = options || {};\n\n    let parts: object;\n\n    if (options.customHashFragment) {\n      parts = this.urlHelper.getHashFragmentParams(options.customHashFragment);\n    } else {\n      parts = this.urlHelper.getHashFragmentParams();\n    }\n\n    this.debug('parsed url', parts);\n\n    const state = parts['state'];\n\n    const [nonceInState, userState] = this.parseState(state);\n    this.state = userState;\n\n    if (parts['error']) {\n      this.debug('error trying to login');\n      this.handleLoginError(options, parts);\n      const err = new OAuthErrorEvent('token_error', {}, parts);\n      this.eventsSubject.next(err);\n      return Promise.reject(err);\n    }\n\n    const accessToken = parts['access_token'];\n    const idToken = parts['id_token'];\n    const sessionState = parts['session_state'];\n    const grantedScopes = parts['scope'];\n\n    if (!this.requestAccessToken && !this.oidc) {\n      return Promise.reject(\n        'Either requestAccessToken or oidc (or both) must be true.'\n      );\n    }\n\n    if (this.requestAccessToken && !accessToken) {\n      return Promise.resolve(false);\n    }\n    if (this.requestAccessToken && !options.disableOAuth2StateCheck && !state) {\n      return Promise.resolve(false);\n    }\n    if (this.oidc && !idToken) {\n      return Promise.resolve(false);\n    }\n\n    if (this.sessionChecksEnabled && !sessionState) {\n      this.logger.warn(\n        'session checks (Session Status Change Notification) ' +\n          'were activated in the configuration but the id_token ' +\n          'does not contain a session_state claim'\n      );\n    }\n\n    if (this.requestAccessToken && !options.disableNonceCheck) {\n      const success = this.validateNonce(nonceInState);\n\n      if (!success) {\n        const event = new OAuthErrorEvent('invalid_nonce_in_state', null);\n        this.eventsSubject.next(event);\n        return Promise.reject(event);\n      }\n    }\n\n    if (this.requestAccessToken) {\n      this.storeAccessTokenResponse(\n        accessToken,\n        null,\n        parts['expires_in'] || this.fallbackAccessTokenExpirationTimeInSec,\n        grantedScopes\n      );\n    }\n\n    if (!this.oidc) {\n      this.eventsSubject.next(new OAuthSuccessEvent('token_received'));\n      if (this.clearHashAfterLogin && !options.preventClearHashAfterLogin) {\n        this.clearLocationHash();\n      }\n\n      this.callOnTokenReceivedIfExists(options);\n      return Promise.resolve(true);\n    }\n\n    return this.processIdToken(idToken, accessToken, options.disableNonceCheck)\n      .then((result) => {\n        if (options.validationHandler) {\n          return options\n            .validationHandler({\n              accessToken: accessToken,\n              idClaims: result.idTokenClaims,\n              idToken: result.idToken,\n              state: state,\n            })\n            .then(() => result);\n        }\n        return result;\n      })\n      .then((result) => {\n        this.storeIdToken(result);\n        this.storeSessionState(sessionState);\n        if (this.clearHashAfterLogin && !options.preventClearHashAfterLogin) {\n          this.clearLocationHash();\n        }\n        this.eventsSubject.next(new OAuthSuccessEvent('token_received'));\n        this.callOnTokenReceivedIfExists(options);\n        this.inImplicitFlow = false;\n        return true;\n      })\n      .catch((reason) => {\n        this.eventsSubject.next(\n          new OAuthErrorEvent('token_validation_error', reason)\n        );\n        this.logger.error('Error validating tokens');\n        this.logger.error(reason);\n        return Promise.reject(reason);\n      });\n  }\n\n  private parseState(state: string): [string, string] {\n    let nonce = state;\n    let userState = '';\n\n    if (state) {\n      const idx = state.indexOf(this.config.nonceStateSeparator);\n      if (idx > -1) {\n        nonce = state.substr(0, idx);\n        userState = state.substr(idx + this.config.nonceStateSeparator.length);\n      }\n    }\n    return [nonce, userState];\n  }\n\n  protected validateNonce(nonceInState: string): boolean {\n    let savedNonce;\n\n    if (\n      this.saveNoncesInLocalStorage &&\n      typeof window['localStorage'] !== 'undefined'\n    ) {\n      savedNonce = localStorage.getItem('nonce');\n    } else {\n      savedNonce = this._storage.getItem('nonce');\n    }\n\n    if (savedNonce !== nonceInState) {\n      const err = 'Validating access_token failed, wrong state/nonce.';\n      console.error(err, savedNonce, nonceInState);\n      return false;\n    }\n    return true;\n  }\n\n  protected storeIdToken(idToken: ParsedIdToken): void {\n    this._storage.setItem('id_token', idToken.idToken);\n    this._storage.setItem('id_token_claims_obj', idToken.idTokenClaimsJson);\n    this._storage.setItem('id_token_expires_at', '' + idToken.idTokenExpiresAt);\n    this._storage.setItem(\n      'id_token_stored_at',\n      '' + this.dateTimeService.now()\n    );\n  }\n\n  protected storeSessionState(sessionState: string): void {\n    this._storage.setItem('session_state', sessionState);\n  }\n\n  protected getSessionState(): string {\n    return this._storage.getItem('session_state');\n  }\n\n  protected handleLoginError(options: LoginOptions, parts: object): void {\n    if (options.onLoginError) {\n      options.onLoginError(parts);\n    }\n    if (this.clearHashAfterLogin && !options.preventClearHashAfterLogin) {\n      this.clearLocationHash();\n    }\n  }\n\n  private getClockSkewInMsec(defaultSkewMsc = 600_000) {\n    if (!this.clockSkewInSec && this.clockSkewInSec !== 0) {\n      return defaultSkewMsc;\n    }\n    return this.clockSkewInSec * 1000;\n  }\n\n  /**\n   * @ignore\n   */\n  public processIdToken(\n    idToken: string,\n    accessToken: string,\n    skipNonceCheck = false\n  ): Promise<ParsedIdToken> {\n    const tokenParts = idToken.split('.');\n    const headerBase64 = this.padBase64(tokenParts[0]);\n    const headerJson = b64DecodeUnicode(headerBase64);\n    const header = JSON.parse(headerJson);\n    const claimsBase64 = this.padBase64(tokenParts[1]);\n    const claimsJson = b64DecodeUnicode(claimsBase64);\n    const claims = JSON.parse(claimsJson);\n\n    let savedNonce;\n    if (\n      this.saveNoncesInLocalStorage &&\n      typeof window['localStorage'] !== 'undefined'\n    ) {\n      savedNonce = localStorage.getItem('nonce');\n    } else {\n      savedNonce = this._storage.getItem('nonce');\n    }\n\n    if (Array.isArray(claims.aud)) {\n      if (claims.aud.every((v) => v !== this.clientId)) {\n        const err = 'Wrong audience: ' + claims.aud.join(',');\n        this.logger.warn(err);\n        return Promise.reject(err);\n      }\n    } else {\n      if (claims.aud !== this.clientId) {\n        const err = 'Wrong audience: ' + claims.aud;\n        this.logger.warn(err);\n        return Promise.reject(err);\n      }\n    }\n\n    if (!claims.sub) {\n      const err = 'No sub claim in id_token';\n      this.logger.warn(err);\n      return Promise.reject(err);\n    }\n\n    /* For now, we only check whether the sub against\n     * silentRefreshSubject when sessionChecksEnabled is on\n     * We will reconsider in a later version to do this\n     * in every other case too.\n     */\n    if (\n      this.sessionChecksEnabled &&\n      this.silentRefreshSubject &&\n      this.silentRefreshSubject !== claims['sub']\n    ) {\n      const err =\n        'After refreshing, we got an id_token for another user (sub). ' +\n        `Expected sub: ${this.silentRefreshSubject}, received sub: ${claims['sub']}`;\n\n      this.logger.warn(err);\n      return Promise.reject(err);\n    }\n\n    if (!claims.iat) {\n      const err = 'No iat claim in id_token';\n      this.logger.warn(err);\n      return Promise.reject(err);\n    }\n\n    if (!this.skipIssuerCheck && claims.iss !== this.issuer) {\n      const err = 'Wrong issuer: ' + claims.iss;\n      this.logger.warn(err);\n      return Promise.reject(err);\n    }\n\n    if (!skipNonceCheck && claims.nonce !== savedNonce) {\n      const err = 'Wrong nonce: ' + claims.nonce;\n      this.logger.warn(err);\n      return Promise.reject(err);\n    }\n    // at_hash is not applicable to authorization code flow\n    // addressing https://github.com/manfredsteyer/angular-oauth2-oidc/issues/661\n    // i.e. Based on spec the at_hash check is only true for implicit code flow on Ping Federate\n    // https://www.pingidentity.com/developer/en/resources/openid-connect-developers-guide.html\n    if (\n      Object.prototype.hasOwnProperty.call(this, 'responseType') &&\n      (this.responseType === 'code' || this.responseType === 'id_token')\n    ) {\n      this.disableAtHashCheck = true;\n    }\n    if (\n      !this.disableAtHashCheck &&\n      this.requestAccessToken &&\n      !claims['at_hash']\n    ) {\n      const err = 'An at_hash is needed!';\n      this.logger.warn(err);\n      return Promise.reject(err);\n    }\n\n    const now = this.dateTimeService.now();\n    const issuedAtMSec = claims.iat * 1000;\n    const expiresAtMSec = claims.exp * 1000;\n    const clockSkewInMSec = this.getClockSkewInMsec(); // (this.getClockSkewInMsec() || 600) * 1000;\n\n    if (\n      issuedAtMSec - clockSkewInMSec >= now ||\n      expiresAtMSec + clockSkewInMSec - this.decreaseExpirationBySec <= now\n    ) {\n      const err = 'Token has expired';\n      console.error(err);\n      console.error({\n        now: now,\n        issuedAtMSec: issuedAtMSec,\n        expiresAtMSec: expiresAtMSec,\n      });\n      return Promise.reject(err);\n    }\n\n    const validationParams: ValidationParams = {\n      accessToken: accessToken,\n      idToken: idToken,\n      jwks: this.jwks,\n      idTokenClaims: claims,\n      idTokenHeader: header,\n      loadKeys: () => this.loadJwks(),\n    };\n\n    if (this.disableAtHashCheck) {\n      return this.checkSignature(validationParams).then(() => {\n        const result: ParsedIdToken = {\n          idToken: idToken,\n          idTokenClaims: claims,\n          idTokenClaimsJson: claimsJson,\n          idTokenHeader: header,\n          idTokenHeaderJson: headerJson,\n          idTokenExpiresAt: expiresAtMSec,\n        };\n        return result;\n      });\n    }\n\n    return this.checkAtHash(validationParams).then((atHashValid) => {\n      if (!this.disableAtHashCheck && this.requestAccessToken && !atHashValid) {\n        const err = 'Wrong at_hash';\n        this.logger.warn(err);\n        return Promise.reject(err);\n      }\n\n      return this.checkSignature(validationParams).then(() => {\n        const atHashCheckEnabled = !this.disableAtHashCheck;\n        const result: ParsedIdToken = {\n          idToken: idToken,\n          idTokenClaims: claims,\n          idTokenClaimsJson: claimsJson,\n          idTokenHeader: header,\n          idTokenHeaderJson: headerJson,\n          idTokenExpiresAt: expiresAtMSec,\n        };\n        if (atHashCheckEnabled) {\n          return this.checkAtHash(validationParams).then((atHashValid) => {\n            if (this.requestAccessToken && !atHashValid) {\n              const err = 'Wrong at_hash';\n              this.logger.warn(err);\n              return Promise.reject(err);\n            } else {\n              return result;\n            }\n          });\n        } else {\n          return result;\n        }\n      });\n    });\n  }\n\n  /**\n   * Returns the received claims about the user.\n   */\n  public getIdentityClaims(): Record<string, any> {\n    const claims = this._storage.getItem('id_token_claims_obj');\n    if (!claims) {\n      return null;\n    }\n    return JSON.parse(claims);\n  }\n\n  /**\n   * Returns the granted scopes from the server.\n   */\n  public getGrantedScopes(): object {\n    const scopes = this._storage.getItem('granted_scopes');\n    if (!scopes) {\n      return null;\n    }\n    return JSON.parse(scopes);\n  }\n\n  /**\n   * Returns the current id_token.\n   */\n  public getIdToken(): string {\n    return this._storage ? this._storage.getItem('id_token') : null;\n  }\n\n  protected padBase64(base64data): string {\n    while (base64data.length % 4 !== 0) {\n      base64data += '=';\n    }\n    return base64data;\n  }\n\n  /**\n   * Returns the current access_token.\n   */\n  public getAccessToken(): string {\n    return this._storage ? this._storage.getItem('access_token') : null;\n  }\n\n  public getRefreshToken(): string {\n    return this._storage ? this._storage.getItem('refresh_token') : null;\n  }\n\n  /**\n   * Returns the expiration date of the access_token\n   * as milliseconds since 1970.\n   */\n  public getAccessTokenExpiration(): number {\n    if (!this._storage.getItem('expires_at')) {\n      return null;\n    }\n    return parseInt(this._storage.getItem('expires_at'), 10);\n  }\n\n  protected getAccessTokenStoredAt(): number {\n    return parseInt(this._storage.getItem('access_token_stored_at'), 10);\n  }\n\n  protected getIdTokenStoredAt(): number {\n    return parseInt(this._storage.getItem('id_token_stored_at'), 10);\n  }\n\n  /**\n   * Returns the expiration date of the id_token\n   * as milliseconds since 1970.\n   */\n  public getIdTokenExpiration(): number {\n    if (!this._storage.getItem('id_token_expires_at')) {\n      return null;\n    }\n\n    return parseInt(this._storage.getItem('id_token_expires_at'), 10);\n  }\n\n  /**\n   * Checkes, whether there is a valid access_token.\n   */\n  public hasValidAccessToken(): boolean {\n    if (this.getAccessToken()) {\n      const expiresAt = this._storage.getItem('expires_at');\n      const now = this.dateTimeService.new();\n      if (\n        expiresAt &&\n        parseInt(expiresAt, 10) - this.decreaseExpirationBySec <\n          now.getTime() - this.getClockSkewInMsec()\n      ) {\n        return false;\n      }\n\n      return true;\n    }\n\n    return false;\n  }\n\n  /**\n   * Checks whether there is a valid id_token.\n   */\n  public hasValidIdToken(): boolean {\n    if (this.getIdToken()) {\n      const expiresAt = this._storage.getItem('id_token_expires_at');\n      const now = this.dateTimeService.new();\n      if (\n        expiresAt &&\n        parseInt(expiresAt, 10) - this.decreaseExpirationBySec <\n          now.getTime() - this.getClockSkewInMsec()\n      ) {\n        return false;\n      }\n\n      return true;\n    }\n\n    return false;\n  }\n\n  /**\n   * Retrieve a saved custom property of the TokenReponse object. Only if predefined in authconfig.\n   */\n  public getCustomTokenResponseProperty(requestedProperty: string): any {\n    return this._storage &&\n      this.config.customTokenParameters &&\n      this.config.customTokenParameters.indexOf(requestedProperty) >= 0 &&\n      this._storage.getItem(requestedProperty) !== null\n      ? JSON.parse(this._storage.getItem(requestedProperty))\n      : null;\n  }\n\n  /**\n   * Returns the auth-header that can be used\n   * to transmit the access_token to a service\n   */\n  public authorizationHeader(): string {\n    return 'Bearer ' + this.getAccessToken();\n  }\n\n  /**\n   * Removes all tokens and logs the user out.\n   * If a logout url is configured, the user is\n   * redirected to it with optional state parameter.\n   * @param noRedirectToLogoutUrl\n   * @param state\n   */\n  public logOut(): void;\n  public logOut(customParameters: boolean | object): void;\n  public logOut(noRedirectToLogoutUrl: boolean): void;\n  public logOut(noRedirectToLogoutUrl: boolean, state: string): void;\n  public logOut(customParameters: boolean | object = {}, state = ''): void {\n    let noRedirectToLogoutUrl = false;\n    if (typeof customParameters === 'boolean') {\n      noRedirectToLogoutUrl = customParameters;\n      customParameters = {};\n    }\n\n    const id_token = this.getIdToken();\n    this._storage.removeItem('access_token');\n    this._storage.removeItem('id_token');\n    this._storage.removeItem('refresh_token');\n\n    if (this.saveNoncesInLocalStorage) {\n      localStorage.removeItem('nonce');\n      localStorage.removeItem('PKCE_verifier');\n    } else {\n      this._storage.removeItem('nonce');\n      this._storage.removeItem('PKCE_verifier');\n    }\n\n    this._storage.removeItem('expires_at');\n    this._storage.removeItem('id_token_claims_obj');\n    this._storage.removeItem('id_token_expires_at');\n    this._storage.removeItem('id_token_stored_at');\n    this._storage.removeItem('access_token_stored_at');\n    this._storage.removeItem('granted_scopes');\n    this._storage.removeItem('session_state');\n    if (this.config.customTokenParameters) {\n      this.config.customTokenParameters.forEach((customParam) =>\n        this._storage.removeItem(customParam)\n      );\n    }\n    this.silentRefreshSubject = null;\n\n    this.eventsSubject.next(new OAuthInfoEvent('logout'));\n\n    if (!this.logoutUrl) {\n      return;\n    }\n    if (noRedirectToLogoutUrl) {\n      return;\n    }\n\n    // if (!id_token && !this.postLogoutRedirectUri) {\n    //   return;\n    // }\n\n    let logoutUrl: string;\n\n    if (!this.validateUrlForHttps(this.logoutUrl)) {\n      throw new Error(\n        \"logoutUrl  must use HTTPS (with TLS), or config value for property 'requireHttps' must be set to 'false' and allow HTTP (without TLS).\"\n      );\n    }\n\n    // For backward compatibility\n    if (this.logoutUrl.indexOf('{{') > -1) {\n      logoutUrl = this.logoutUrl\n        .replace(/\\{\\{id_token\\}\\}/, encodeURIComponent(id_token))\n        .replace(/\\{\\{client_id\\}\\}/, encodeURIComponent(this.clientId));\n    } else {\n      let params = new HttpParams({ encoder: new WebHttpUrlEncodingCodec() });\n\n      if (id_token) {\n        params = params.set('id_token_hint', id_token);\n      }\n\n      const postLogoutUrl =\n        this.postLogoutRedirectUri ||\n        (this.redirectUriAsPostLogoutRedirectUriFallback && this.redirectUri) ||\n        '';\n      if (postLogoutUrl) {\n        params = params.set('post_logout_redirect_uri', postLogoutUrl);\n\n        if (state) {\n          params = params.set('state', state);\n        }\n      }\n\n      for (const key in customParameters) {\n        params = params.set(key, customParameters[key]);\n      }\n\n      logoutUrl =\n        this.logoutUrl +\n        (this.logoutUrl.indexOf('?') > -1 ? '&' : '?') +\n        params.toString();\n    }\n    this.config.openUri(logoutUrl);\n  }\n\n  /**\n   * @ignore\n   */\n  public createAndSaveNonce(): Promise<string> {\n    const that = this; // eslint-disable-line @typescript-eslint/no-this-alias\n    return this.createNonce().then(function (nonce: any) {\n      // Use localStorage for nonce if possible\n      // localStorage is the only storage who survives a\n      // redirect in ALL browsers (also IE)\n      // Otherwiese we'd force teams who have to support\n      // IE into using localStorage for everything\n      if (\n        that.saveNoncesInLocalStorage &&\n        typeof window['localStorage'] !== 'undefined'\n      ) {\n        localStorage.setItem('nonce', nonce);\n      } else {\n        that._storage.setItem('nonce', nonce);\n      }\n      return nonce;\n    });\n  }\n\n  /**\n   * @ignore\n   */\n  public ngOnDestroy(): void {\n    this.clearAccessTokenTimer();\n    this.clearIdTokenTimer();\n\n    this.removeSilentRefreshEventListener();\n    const silentRefreshFrame = this.document.getElementById(\n      this.silentRefreshIFrameName\n    );\n    if (silentRefreshFrame) {\n      silentRefreshFrame.remove();\n    }\n\n    this.stopSessionCheckTimer();\n    this.removeSessionCheckEventListener();\n    const sessionCheckFrame = this.document.getElementById(\n      this.sessionCheckIFrameName\n    );\n    if (sessionCheckFrame) {\n      sessionCheckFrame.remove();\n    }\n  }\n\n  protected createNonce(): Promise<string> {\n    return new Promise((resolve) => {\n      if (this.rngUrl) {\n        throw new Error(\n          'createNonce with rng-web-api has not been implemented so far'\n        );\n      }\n\n      /*\n       * This alphabet is from:\n       * https://tools.ietf.org/html/rfc7636#section-4.1\n       *\n       * [A-Z] / [a-z] / [0-9] / \"-\" / \".\" / \"_\" / \"~\"\n       */\n      const unreserved =\n        'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~';\n      let size = 45;\n      let id = '';\n\n      const crypto =\n        typeof self === 'undefined' ? null : self.crypto || self['msCrypto'];\n      if (crypto) {\n        let bytes = new Uint8Array(size);\n        crypto.getRandomValues(bytes);\n\n        // Needed for IE\n        if (!bytes.map) {\n          (bytes as any).map = Array.prototype.map;\n        }\n\n        bytes = bytes.map((x) => unreserved.charCodeAt(x % unreserved.length));\n        id = String.fromCharCode.apply(null, bytes);\n      } else {\n        while (0 < size--) {\n          id += unreserved[(Math.random() * unreserved.length) | 0];\n        }\n      }\n\n      resolve(base64UrlEncode(id));\n    });\n  }\n\n  protected async checkAtHash(params: ValidationParams): Promise<boolean> {\n    if (!this.tokenValidationHandler) {\n      this.logger.warn(\n        'No tokenValidationHandler configured. Cannot check at_hash.'\n      );\n      return true;\n    }\n    return this.tokenValidationHandler.validateAtHash(params);\n  }\n\n  protected checkSignature(params: ValidationParams): Promise<any> {\n    if (!this.tokenValidationHandler) {\n      this.logger.warn(\n        'No tokenValidationHandler configured. Cannot check signature.'\n      );\n      return Promise.resolve(null);\n    }\n    return this.tokenValidationHandler.validateSignature(params);\n  }\n\n  /**\n   * Start the implicit flow or the code flow,\n   * depending on your configuration.\n   */\n  public initLoginFlow(additionalState = '', params = {}): void {\n    if (this.responseType === 'code') {\n      return this.initCodeFlow(additionalState, params);\n    } else {\n      return this.initImplicitFlow(additionalState, params);\n    }\n  }\n\n  /**\n   * Starts the authorization code flow and redirects to user to\n   * the auth servers login url.\n   */\n  public initCodeFlow(additionalState = '', params = {}): void {\n    if (this.loginUrl !== '') {\n      this.initCodeFlowInternal(additionalState, params);\n    } else {\n      this.events\n        .pipe(filter((e) => e.type === 'discovery_document_loaded'))\n        .subscribe(() => this.initCodeFlowInternal(additionalState, params));\n    }\n  }\n\n  private initCodeFlowInternal(additionalState = '', params = {}): void {\n    if (!this.validateUrlForHttps(this.loginUrl)) {\n      throw new Error(\n        \"loginUrl  must use HTTPS (with TLS), or config value for property 'requireHttps' must be set to 'false' and allow HTTP (without TLS).\"\n      );\n    }\n\n    let addParams = {};\n    let loginHint = null;\n    if (typeof params === 'string') {\n      loginHint = params;\n    } else if (typeof params === 'object') {\n      addParams = params;\n    }\n\n    this.createLoginUrl(additionalState, loginHint, null, false, addParams)\n      .then(this.config.openUri)\n      .catch((error) => {\n        console.error('Error in initAuthorizationCodeFlow');\n        console.error(error);\n      });\n  }\n\n  protected async createChallangeVerifierPairForPKCE(): Promise<\n    [string, string]\n  > {\n    if (!this.crypto) {\n      throw new Error(\n        'PKCE support for code flow needs a CryptoHander. Did you import the OAuthModule using forRoot() ?'\n      );\n    }\n\n    const verifier = await this.createNonce();\n    const challengeRaw = await this.crypto.calcHash(verifier, 'sha-256');\n    const challenge = base64UrlEncode(challengeRaw);\n\n    return [challenge, verifier];\n  }\n\n  private extractRecognizedCustomParameters(\n    tokenResponse: TokenResponse\n  ): Map<string, string> {\n    const foundParameters: Map<string, string> = new Map<string, string>();\n    if (!this.config.customTokenParameters) {\n      return foundParameters;\n    }\n    this.config.customTokenParameters.forEach((recognizedParameter: string) => {\n      if (tokenResponse[recognizedParameter]) {\n        foundParameters.set(\n          recognizedParameter,\n          JSON.stringify(tokenResponse[recognizedParameter])\n        );\n      }\n    });\n    return foundParameters;\n  }\n\n  /**\n   * Revokes the auth token to secure the vulnarability\n   * of the token issued allowing the authorization server to clean\n   * up any security credentials associated with the authorization\n   */\n  public revokeTokenAndLogout(\n    customParameters: boolean | object = {},\n    ignoreCorsIssues = false\n  ): Promise<any> {\n    const revokeEndpoint = this.revocationEndpoint;\n    const accessToken = this.getAccessToken();\n    const refreshToken = this.getRefreshToken();\n\n    if (!accessToken) {\n      return Promise.resolve();\n    }\n\n    let params = new HttpParams({ encoder: new WebHttpUrlEncodingCodec() });\n\n    let headers = new HttpHeaders().set(\n      'Content-Type',\n      'application/x-www-form-urlencoded'\n    );\n\n    if (this.useHttpBasicAuth) {\n      const header = btoa(`${this.clientId}:${this.dummyClientSecret}`);\n      headers = headers.set('Authorization', 'Basic ' + header);\n    }\n\n    if (!this.useHttpBasicAuth) {\n      params = params.set('client_id', this.clientId);\n    }\n\n    if (!this.useHttpBasicAuth && this.dummyClientSecret) {\n      params = params.set('client_secret', this.dummyClientSecret);\n    }\n\n    if (this.customQueryParams) {\n      for (const key of Object.getOwnPropertyNames(this.customQueryParams)) {\n        params = params.set(key, this.customQueryParams[key]);\n      }\n    }\n\n    return new Promise((resolve, reject) => {\n      let revokeAccessToken: Observable<void>;\n      let revokeRefreshToken: Observable<void>;\n\n      if (accessToken) {\n        const revokationParams = params\n          .set('token', accessToken)\n          .set('token_type_hint', 'access_token');\n        revokeAccessToken = this.http.post<void>(\n          revokeEndpoint,\n          revokationParams,\n          { headers }\n        );\n      } else {\n        revokeAccessToken = of(null);\n      }\n\n      if (refreshToken) {\n        const revokationParams = params\n          .set('token', refreshToken)\n          .set('token_type_hint', 'refresh_token');\n        revokeRefreshToken = this.http.post<void>(\n          revokeEndpoint,\n          revokationParams,\n          { headers }\n        );\n      } else {\n        revokeRefreshToken = of(null);\n      }\n\n      if (ignoreCorsIssues) {\n        revokeAccessToken = revokeAccessToken.pipe(\n          catchError((err: HttpErrorResponse) => {\n            if (err.status === 0) {\n              return of<void>(null);\n            }\n            return throwError(err);\n          })\n        );\n\n        revokeRefreshToken = revokeRefreshToken.pipe(\n          catchError((err: HttpErrorResponse) => {\n            if (err.status === 0) {\n              return of<void>(null);\n            }\n            return throwError(err);\n          })\n        );\n      }\n\n      combineLatest([revokeAccessToken, revokeRefreshToken]).subscribe(\n        (res) => {\n          this.logOut(customParameters);\n          resolve(res);\n          this.logger.info('Token successfully revoked');\n        },\n        (err) => {\n          this.logger.error('Error revoking token', err);\n          this.eventsSubject.next(\n            new OAuthErrorEvent('token_revoke_error', err)\n          );\n          reject(err);\n        }\n      );\n    });\n  }\n\n  /**\n   * Clear location.hash if it's present\n   */\n  private clearLocationHash() {\n    // Checking for empty hash is necessary for Firefox\n    // as setting an empty hash to an empty string adds # to the URL\n    if (location.hash != '') {\n      location.hash = '';\n    }\n  }\n}\n"]}
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