cleanup unused references.
simplify authorization url genreation using fragment oauth mode to support stateless Lighthouse.
This commit is contained in:
Jason Kulatunga
parent
9f6e32119f
commit
f03bdbd122
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@ -20,6 +20,7 @@ const routes: Routes = [
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{ path: 'source/:source_id', component: SourceDetailComponent, canActivate: [ CanActivateAuthGuard] },
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{ path: 'source/:source_id/resource/:resource_id', component: ResourceDetailComponent, canActivate: [ CanActivateAuthGuard] },
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{ path: 'sources', component: MedicalSourcesComponent, canActivate: [ CanActivateAuthGuard] },
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{ path: 'sources/callback/:source_type', component: MedicalSourcesComponent, canActivate: [ CanActivateAuthGuard] },
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@ -0,0 +1,19 @@
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export class LighthouseSourceMetadata {
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authorization_endpoint: string
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token_endpoint: string
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introspection_endpoint: string
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userinfo_endpoint: string
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scopes_supported: string[]
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issuer: string
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grant_types_supported: string[]
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response_types_supported: string[]
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aud: string
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code_challenge_methods_supported: string[]
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api_endpoint_base_url: string
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client_id: string
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redirect_uri: string
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confidential: boolean
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}
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@ -1,17 +0,0 @@
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export class LighthouseSource {
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oauth_authorization_endpoint: string
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oauth_token_endpoint: string
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oauth_registration_endpoint: string
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oauth_introspection_endpoint: string
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oauth_userinfo_endpoint: string
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oauth_token_endpoint_auth_methods_supported: string
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api_endpoint_base_url: string
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response_type: string
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client_id: string
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scopes: string[]
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redirect_uri: string
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aud: string
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confidential: boolean
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}
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@ -1,7 +0,0 @@
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import { LighthouseSource } from './lighthouse-source';
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describe('LighthouseSource', () => {
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it('should create an instance', () => {
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expect(new LighthouseSource()).toBeTruthy();
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});
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});
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@ -1,6 +1,5 @@
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import { Component, OnInit } from '@angular/core';
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import {FastenApiService} from '../../services/fasten-api.service';
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import {LighthouseSource} from '../../models/lighthouse/lighthouse-source';
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import {User} from '../../models/fasten/user';
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import {Router} from '@angular/router';
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@ -1,6 +1,5 @@
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import { Component, OnInit } from '@angular/core';
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import {FastenApiService} from '../../services/fasten-api.service';
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import {LighthouseSource} from '../../models/lighthouse/lighthouse-source';
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import {Source} from '../../models/fasten/source';
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import {Router} from '@angular/router';
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import {Summary} from '../../models/fasten/summary';
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@ -1,7 +1,7 @@
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import {Component, HostListener, OnInit} from '@angular/core';
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import {LighthouseService} from '../../services/lighthouse.service';
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import {FastenApiService} from '../../services/fasten-api.service';
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import {LighthouseSource} from '../../models/lighthouse/lighthouse-source';
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import {LighthouseSourceMetadata} from '../../models/lighthouse/lighthouse-source-metadata';
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import * as Oauth from '@panva/oauth4webapi';
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import {AuthorizeClaim} from '../../models/lighthouse/authorize-claim';
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import {Source} from '../../models/fasten/source';
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@ -12,6 +12,9 @@ import {concatMap, delay, retryWhen, timeout, first, map, filter, catchError} fr
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import * as FHIR from "fhirclient"
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import {MetadataSource} from '../../models/fasten/metadata-source';
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import {NgbModal, ModalDismissReasons} from '@ng-bootstrap/ng-bootstrap';
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import {ActivatedRoute, Router} from '@angular/router';
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import {Location} from '@angular/common';
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// If you dont import this angular will import the wrong "Location"
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export const sourceConnectWindowTimeout = 24*5000 //wait 2 minutes (5 * 24 = 120)
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@ -26,6 +29,9 @@ export class MedicalSourcesComponent implements OnInit {
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private lighthouseApi: LighthouseService,
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private fastenApi: FastenApiService,
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private modalService: NgbModal,
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private route: ActivatedRoute,
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private router: Router,
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private location: Location,
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) { }
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status: { [name: string]: string } = {}
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@ -43,6 +49,11 @@ export class MedicalSourcesComponent implements OnInit {
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this.fastenApi.getMetadataSources().subscribe((metadataSources: {[name:string]: MetadataSource}) => {
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this.metadataSources = metadataSources
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const callbackSourceType = this.route.snapshot.paramMap.get('source_type')
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if(callbackSourceType){
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this.callback(callbackSourceType).then(console.log)
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}
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this.fastenApi.getSources()
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.subscribe((sourceList: Source[]) => {
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@ -73,52 +84,52 @@ export class MedicalSourcesComponent implements OnInit {
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this.status[sourceType] = "authorize"
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this.lighthouseApi.getLighthouseSource(sourceType)
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.subscribe(async (connectData: LighthouseSource) => {
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console.log(connectData);
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const state = this.uuidV4()
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let authorizationUrl
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//only set if this is not a "confidential" source.
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let codeVerifier
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let codeChallenge
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let codeChallengeMethod
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if(connectData.confidential){
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authorizationUrl = this.lighthouseApi.generateConfidentialSourceAuthorizeUrl(state, connectData)
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} else {
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// https://github.com/panva/oauth4webapi/blob/8eba19eac408bdec5c1fe8abac2710c50bfadcc3/examples/public.ts
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codeVerifier = Oauth.generateRandomCodeVerifier();
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codeChallenge = await Oauth.calculatePKCECodeChallenge(codeVerifier);
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codeChallengeMethod = 'S256';
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authorizationUrl = this.lighthouseApi.generatePKCESourceAuthorizeUrl(codeVerifier, codeChallenge, codeChallengeMethod, state, connectData)
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}
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.subscribe(async (sourceMetadata: LighthouseSourceMetadata) => {
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console.log(sourceMetadata);
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let authorizationUrl = await this.lighthouseApi.generateSourceAuthorizeUrl(sourceType, sourceMetadata)
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console.log('authorize url:', authorizationUrl.toString());
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// open new browser window
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let openedWindow = window.open(authorizationUrl.toString(), "_blank");
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// redirect to lighthouse with uri's
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this.lighthouseApi.redirectWithOriginAndDestination(authorizationUrl.toString(), sourceType)
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//wait for response
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// TODO: throw an error if we timeout or an error occurs during authentication.
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this.waitForClaimOrTimeout(openedWindow, sourceType, state).subscribe(async (claimData: AuthorizeClaim) => {
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console.log("claim response:", claimData)
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});
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}
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async callback(sourceType: string) {
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//get the source metadata again
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await this.lighthouseApi.getLighthouseSource(sourceType)
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.subscribe(async (sourceMetadata: LighthouseSourceMetadata) => {
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//get required parameters from the URI and local storage
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const callbackUrlParts = new URL(window.location.href)
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const fragmentParams = new URLSearchParams(callbackUrlParts.hash.substring(1))
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const callbackCode = callbackUrlParts.searchParams.get("code") || fragmentParams.get("code")
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const callbackState = callbackUrlParts.searchParams.get("state") || fragmentParams.get("state")
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const callbackError = callbackUrlParts.searchParams.get("error") || fragmentParams.get("error")
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const callbackErrorDescription = callbackUrlParts.searchParams.get("error_description") || fragmentParams.get("error_description")
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//reset the url, removing the params and fragment from the current url.
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const urlTree = this.router.createUrlTree(["/sources"],{
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relativeTo: this.route,
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});
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this.location.replaceState(urlTree.toString());
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const expectedState = localStorage.getItem(`${sourceType}:state`)
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localStorage.removeItem(`${sourceType}:state`)
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if(callbackError && !callbackCode){
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//TOOD: print this message in the UI
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console.error("an error occurred while authenticating to this source. Please try again later", callbackErrorDescription)
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return
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}
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console.log("callback code:", callbackCode)
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this.status[sourceType] = "token"
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let payload: any
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if(connectData.confidential){
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// we should have an access_token (and optionally a refresh_token) in the claim
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payload = claimData
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//patient may be returned as patient_id
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payload.patient = payload.patient ? payload.patient : payload.patient_id
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} else {
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payload = await this.swapOauthPKCEToken(state, codeVerifier, authorizationUrl, connectData, claimData)
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}
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payload = await this.lighthouseApi.swapOauthToken(sourceType, sourceMetadata,expectedState, callbackState, callbackCode)
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//If payload.patient is not set, make sure we extract the patient ID from the id_token or make an introspection req
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@ -136,49 +147,46 @@ export class MedicalSourcesComponent implements OnInit {
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const sourceCredential: Source = {
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source_type: sourceType,
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oauth_authorization_endpoint: connectData.oauth_authorization_endpoint,
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oauth_token_endpoint: connectData.oauth_token_endpoint,
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oauth_registration_endpoint: connectData.oauth_registration_endpoint,
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oauth_introspection_endpoint: connectData.oauth_introspection_endpoint,
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oauth_userinfo_endpoint: connectData.oauth_userinfo_endpoint,
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oauth_token_endpoint_auth_methods_supported: connectData.oauth_token_endpoint_auth_methods_supported,
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api_endpoint_base_url: connectData.api_endpoint_base_url,
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client_id: connectData.client_id,
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redirect_uri: connectData.redirect_uri,
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scopes: connectData.scopes ? connectData.scopes.join(' ') : undefined,
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oauth_authorization_endpoint: sourceMetadata.authorization_endpoint,
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oauth_token_endpoint: sourceMetadata.token_endpoint,
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oauth_registration_endpoint: "",
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oauth_introspection_endpoint: sourceMetadata.introspection_endpoint,
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oauth_userinfo_endpoint: sourceMetadata.userinfo_endpoint,
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oauth_token_endpoint_auth_methods_supported: "",
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api_endpoint_base_url: sourceMetadata.api_endpoint_base_url,
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client_id: sourceMetadata.client_id,
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redirect_uri: sourceMetadata.redirect_uri,
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scopes: sourceMetadata.scopes_supported ? sourceMetadata.scopes_supported.join(' ') : undefined,
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patient_id: payload.patient,
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access_token: payload.access_token,
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refresh_token: payload.refresh_token,
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id_token: payload.id_token,
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code_challenge: codeChallenge,
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code_verifier: codeVerifier,
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code_challenge: "",
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code_verifier: "",
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// @ts-ignore - in some cases the getAccessTokenExpiration is a string, which cases failures to store Source in db.
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expires_at: parseInt(getAccessTokenExpiration(payload, new BrowserAdapter())),
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confidential: connectData.confidential
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confidential: sourceMetadata.confidential
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}
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await this.fastenApi.createSource(sourceCredential).subscribe(
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(respData) => {
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delete this.status[sourceType]
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window.location.reload();
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// window.location.reload();
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console.log("source credential create response:", respData)
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},
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(err) => {
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delete this.status[sourceType]
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window.location.reload();
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// window.location.reload();
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console.log(err)
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}
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)
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})
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});
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}
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uploadSourceBundle(event) {
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this.uploadedFile = [event.addedFiles[0]]
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this.fastenApi.createManualSource(event.addedFiles[0]).subscribe(
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@ -229,80 +237,4 @@ export class MedicalSourcesComponent implements OnInit {
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}
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}
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private waitForClaimOrTimeout(openedWindow: Window, sourceType: string, state: string): Observable<AuthorizeClaim> {
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console.log(`waiting for postMessage notification from ${sourceType} window`)
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//new code to listen to post message
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return fromEvent(window, 'message')
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.pipe(
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//throw an error if we wait more than 2 minutes (this will close the window)
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timeout(sourceConnectWindowTimeout),
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//make sure we're only listening to events from the "opened" window.
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filter((event: MessageEvent) => event.source == openedWindow),
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//after filtering, we should only have one event to handle.
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first(),
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map((event) => {
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console.log(`received postMessage notification from ${sourceType} window & sending acknowledgment`)
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// @ts-ignore
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event.source.postMessage(JSON.stringify({close:true}), event.origin);
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}),
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concatMap(() => {
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console.log("requesting authorized claim")
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return this.lighthouseApi.getSourceAuthorizeClaim(sourceType, state)
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}),
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catchError((err) => {
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console.warn(`timed out waiting for notification from ${sourceType} (${sourceConnectWindowTimeout/1000}s), closing window`)
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openedWindow.self.close()
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return throwError(err)
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})
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)
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}
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private uuidV4(){
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// @ts-ignore
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return ([1e7]+-1e3+-4e3+-8e3+-1e11).replace(/[018]/g, c =>
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(c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)
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);
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}
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private async swapOauthPKCEToken(state: string, codeVerifier: any, authorizationUrl: URL, connectData: LighthouseSource, claimData: AuthorizeClaim){
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// @ts-expect-error
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const client: oauth.Client = {
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client_id: connectData.client_id,
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token_endpoint_auth_method: 'none',
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}
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//check if the oauth_token_endpoint_auth_methods_supported field is set
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if(connectData.oauth_token_endpoint_auth_methods_supported){
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let auth_methods = connectData.oauth_token_endpoint_auth_methods_supported.split(",")
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client.token_endpoint_auth_method = auth_methods[0]
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}
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const as = {
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issuer: `${authorizationUrl.protocol}//${authorizationUrl.host}`,
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authorization_endpoint: connectData.oauth_authorization_endpoint,
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token_endpoint: connectData.oauth_token_endpoint,
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introspection_endpoint: connectData.oauth_introspection_endpoint,
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}
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console.log("STARTING--- Oauth.validateAuthResponse")
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const params = Oauth.validateAuthResponse(as, client, new URLSearchParams(claimData as any), state)
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if (Oauth.isOAuth2Error(params)) {
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console.log('error', params)
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throw new Error() // Handle OAuth 2.0 redirect error
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}
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console.log("ENDING--- Oauth.validateAuthResponse")
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console.log("STARTING--- Oauth.authorizationCodeGrantRequest")
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const response = await Oauth.authorizationCodeGrantRequest(
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as,
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client,
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params,
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connectData.redirect_uri,
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codeVerifier,
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)
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let payload = await response.json()
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console.log("ENDING--- Oauth.authorizationCodeGrantRequest", payload)
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return payload
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}
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}
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@ -2,8 +2,6 @@ import { Injectable } from '@angular/core';
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import { HttpClient, HttpHeaders } from '@angular/common/http';
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import {Observable} from 'rxjs';
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import { Router } from '@angular/router';
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import {LighthouseSource} from '../models/lighthouse/lighthouse-source';
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import {environment} from '../../environments/environment';
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import {map} from 'rxjs/operators';
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import {ResponseWrapper} from '../models/response-wrapper';
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import {Source} from '../models/fasten/source';
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@ -4,8 +4,8 @@ import {Observable} from 'rxjs';
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import {environment} from '../../environments/environment';
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import {map, tap} from 'rxjs/operators';
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import {ResponseWrapper} from '../models/response-wrapper';
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import {LighthouseSource} from '../models/lighthouse/lighthouse-source';
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import {AuthorizeClaim} from '../models/lighthouse/authorize-claim';
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import {LighthouseSourceMetadata} from '../models/lighthouse/lighthouse-source-metadata';
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import * as Oauth from '@panva/oauth4webapi';
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@Injectable({
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providedIn: 'root'
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@ -15,57 +15,140 @@ export class LighthouseService {
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constructor(private _httpClient: HttpClient) {
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}
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getLighthouseSource(sourceType: string): Observable<LighthouseSource> {
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getLighthouseSource(sourceType: string): Observable<LighthouseSourceMetadata> {
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return this._httpClient.get<any>(`${environment.lighthouse_api_endpoint_base}/connect/${sourceType}`)
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.pipe(
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map((response: ResponseWrapper) => {
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return response.data as LighthouseSource
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return response.data as LighthouseSourceMetadata
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})
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);
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}
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generatePKCESourceAuthorizeUrl(codeVerifier: string, codeChallenge: string, codeChallengeMethod: string, state: string, lighthouseSource: LighthouseSource): URL {
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async generateSourceAuthorizeUrl(sourceType: string, lighthouseSource: LighthouseSourceMetadata): Promise<URL> {
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const state = this.uuidV4()
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localStorage.setItem(`${sourceType}:state`, state)
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// generate the authorization url
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const authorizationUrl = new URL(lighthouseSource.oauth_authorization_endpoint);
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const authorizationUrl = new URL(lighthouseSource.authorization_endpoint);
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authorizationUrl.searchParams.set('redirect_uri', lighthouseSource.redirect_uri);
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authorizationUrl.searchParams.set('response_type', lighthouseSource.response_types_supported[0]);
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authorizationUrl.searchParams.set('response_mode', 'fragment');
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authorizationUrl.searchParams.set('state', state);
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authorizationUrl.searchParams.set('client_id', lighthouseSource.client_id);
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if(lighthouseSource.scopes_supported && lighthouseSource.scopes_supported.length){
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authorizationUrl.searchParams.set('scope', lighthouseSource.scopes_supported.join(' '));
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}
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if (lighthouseSource.aud) {
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authorizationUrl.searchParams.set('aud', lighthouseSource.aud);
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}
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//this is for providers that support CORS and PKCE (public client auth)
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if(!lighthouseSource.confidential){
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// https://github.com/panva/oauth4webapi/blob/8eba19eac408bdec5c1fe8abac2710c50bfadcc3/examples/public.ts
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const codeVerifier = Oauth.generateRandomCodeVerifier();
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const codeChallenge = await Oauth.calculatePKCECodeChallenge(codeVerifier);
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const codeChallengeMethod = lighthouseSource.code_challenge_methods_supported[0]; // 'S256'
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localStorage.setItem(`${lighthouseSource}:code_verifier`, codeVerifier)
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localStorage.setItem(`${sourceType}:code_challenge`, codeChallenge)
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localStorage.setItem(`${sourceType}:code_challenge_method`, codeChallengeMethod)
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authorizationUrl.searchParams.set('code_challenge', codeChallenge);
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authorizationUrl.searchParams.set('code_challenge_method', codeChallengeMethod);
|
||||
authorizationUrl.searchParams.set('redirect_uri', lighthouseSource.redirect_uri);
|
||||
authorizationUrl.searchParams.set('response_type', 'code');
|
||||
authorizationUrl.searchParams.set('state', state);
|
||||
if(lighthouseSource.scopes && lighthouseSource.scopes.length){
|
||||
authorizationUrl.searchParams.set('scope', lighthouseSource.scopes.join(' '));
|
||||
}
|
||||
if (lighthouseSource.aud) {
|
||||
authorizationUrl.searchParams.set('aud', lighthouseSource.aud);
|
||||
}
|
||||
|
||||
return authorizationUrl
|
||||
}
|
||||
|
||||
generateConfidentialSourceAuthorizeUrl(state: string, lighthouseSource: LighthouseSource): URL {
|
||||
// generate the authorization url
|
||||
const authorizationUrl = new URL(lighthouseSource.oauth_authorization_endpoint);
|
||||
authorizationUrl.searchParams.set('client_id', lighthouseSource.client_id);
|
||||
authorizationUrl.searchParams.set('redirect_uri', lighthouseSource.redirect_uri);
|
||||
authorizationUrl.searchParams.set('response_type', 'code');
|
||||
authorizationUrl.searchParams.set('state', state);
|
||||
if(lighthouseSource.scopes && lighthouseSource.scopes.length){
|
||||
authorizationUrl.searchParams.set('scope', lighthouseSource.scopes.join(' '));
|
||||
redirectWithOriginAndDestination(destUrl: string, sourceType: string){
|
||||
const originUrlParts = new URL(window.location.href)
|
||||
originUrlParts.hash = "" //reset hash in-case its present.
|
||||
originUrlParts.pathname = this.pathJoin([originUrlParts.pathname, `callback/${sourceType}`])
|
||||
|
||||
|
||||
const redirectUrlParts = new URL(`${environment.lighthouse_api_endpoint_base}/redirect/${sourceType}`);
|
||||
const redirectParams = new URLSearchParams()
|
||||
redirectParams.set("origin_url", originUrlParts.toString())
|
||||
redirectParams.set("dest_url", destUrl)
|
||||
redirectUrlParts.search = redirectParams.toString()
|
||||
console.log(redirectUrlParts.toString());
|
||||
|
||||
// Simulate a mouse click:
|
||||
window.location.href = redirectUrlParts.toString();
|
||||
}
|
||||
if (lighthouseSource.aud) {
|
||||
authorizationUrl.searchParams.set('aud', lighthouseSource.aud);
|
||||
|
||||
async swapOauthToken(sourceType: string, sourceMetadata: LighthouseSourceMetadata, expectedState: string, state: string, code: string){
|
||||
// @ts-expect-error
|
||||
const client: oauth.Client = {
|
||||
client_id: sourceMetadata.client_id
|
||||
}
|
||||
return authorizationUrl
|
||||
//this is for providers that support CORS & PKCE (public client auth)
|
||||
let codeVerifier = undefined
|
||||
if(!sourceMetadata.confidential){
|
||||
client.token_endpoint_auth_method = 'none'
|
||||
codeVerifier = localStorage.getItem(`${sourceType}:code_verifier`)
|
||||
|
||||
localStorage.removeItem(`${sourceType}:code_verifier`)
|
||||
localStorage.removeItem(`${sourceType}:code_challenge`)
|
||||
localStorage.removeItem(`${sourceType}:code_challenge_method`)
|
||||
} else {
|
||||
console.log("This is a confidential client, using lighthouse token endpoint.")
|
||||
//if this is a confidential client, we need to "override" token endpoint, and use the Fasten Lighthouse to complete the swap
|
||||
sourceMetadata.token_endpoint = sourceMetadata.redirect_uri.replace("callback", "token")
|
||||
//use a placeholder client_secret (the actual secret is stored in Lighthouse)
|
||||
client.client_secret = "placeholder"
|
||||
client.token_endpoint_auth_method = "client_secret_basic"
|
||||
codeVerifier = "placeholder"
|
||||
}
|
||||
|
||||
const as = {
|
||||
issuer: sourceMetadata.issuer,
|
||||
authorization_endpoint: sourceMetadata.authorization_endpoint,
|
||||
token_endpoint: sourceMetadata.token_endpoint,
|
||||
introspection_endpoint: sourceMetadata.introspection_endpoint,
|
||||
}
|
||||
|
||||
console.log("STARTING--- Oauth.validateAuthResponse")
|
||||
const params = Oauth.validateAuthResponse(as, client, new URLSearchParams({"code": code, "state": state}), expectedState)
|
||||
if (Oauth.isOAuth2Error(params)) {
|
||||
console.log('error', params)
|
||||
throw new Error() // Handle OAuth 2.0 redirect error
|
||||
}
|
||||
console.log("ENDING--- Oauth.validateAuthResponse")
|
||||
console.log("STARTING--- Oauth.authorizationCodeGrantRequest")
|
||||
const response = await Oauth.authorizationCodeGrantRequest(
|
||||
as,
|
||||
client,
|
||||
params,
|
||||
sourceMetadata.redirect_uri,
|
||||
codeVerifier,
|
||||
)
|
||||
let payload = await response.json()
|
||||
console.log("ENDING--- Oauth.authorizationCodeGrantRequest", payload)
|
||||
return payload
|
||||
}
|
||||
|
||||
|
||||
getSourceAuthorizeClaim(sourceType: string, state: string): Observable<AuthorizeClaim> {
|
||||
return this._httpClient.get<any>(`${environment.lighthouse_api_endpoint_base}/claim/${sourceType}`, {params: {"state": state}})
|
||||
.pipe(
|
||||
map((response: ResponseWrapper) => {
|
||||
return response.data as AuthorizeClaim
|
||||
|
||||
private pathJoin(parts: string[], sep?: string): string{
|
||||
const separator = sep || '/';
|
||||
parts = parts.map((part, index)=>{
|
||||
if (index) {
|
||||
part = part.replace(new RegExp('^' + separator), '');
|
||||
}
|
||||
if (index !== parts.length - 1) {
|
||||
part = part.replace(new RegExp(separator + '$'), '');
|
||||
}
|
||||
return part;
|
||||
})
|
||||
return parts.join(separator);
|
||||
}
|
||||
|
||||
private uuidV4(){
|
||||
// @ts-ignore
|
||||
return ([1e7]+-1e3+-4e3+-8e3+-1e11).replace(/[018]/g, c =>
|
||||
(c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)
|
||||
);
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue