91 lines
2.8 KiB
Dart
91 lines
2.8 KiB
Dart
/// Browser client library for the Angel framework.
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library angel_client.browser;
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import 'dart:async'
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show Future, Stream, StreamController, StreamSubscription, Timer;
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import 'dart:html' show CustomEvent, Event, window;
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import 'dart:convert';
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import 'package:http/browser_client.dart' as http;
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import 'angel_client.dart';
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// import 'auth_types.dart' as auth_types;
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import 'base_angel_client.dart';
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export 'angel_client.dart';
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/// Queries an Angel server via REST.
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class Rest extends BaseAngelClient {
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Rest(String basePath) : super(new http.BrowserClient(), basePath);
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@override
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Future<AngelAuthResult> authenticate(
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{String type,
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credentials,
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String authEndpoint: '/auth',
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String reviveEndpoint: '/auth/token'}) async {
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if (type == null) {
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if (!window.localStorage.containsKey('token')) {
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throw new Exception(
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'Cannot revive token from localStorage - there is none.');
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}
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try {
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final result = await super.authenticate(
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type: null,
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credentials: {'token': json.decode(window.localStorage['token'])},
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reviveEndpoint: reviveEndpoint);
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window.localStorage['token'] = json.encode(authToken = result.token);
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window.localStorage['user'] = json.encode(result.data);
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return result;
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} catch (e, st) {
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throw new AngelHttpException(e,
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message: 'Failed to revive auth token.', stackTrace: st);
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}
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} else {
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final result = await super.authenticate(
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type: type, credentials: credentials, authEndpoint: authEndpoint);
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window.localStorage['token'] = json.encode(authToken = result.token);
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window.localStorage['user'] = json.encode(result.data);
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return result;
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}
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}
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@override
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Stream<String> authenticateViaPopup(String url,
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{String eventName: 'token', String errorMessage}) {
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var ctrl = new StreamController<String>();
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var wnd = window.open(url, 'angel_client_auth_popup');
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Timer t;
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StreamSubscription sub;
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t = new Timer.periodic(new Duration(milliseconds: 500), (timer) {
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if (!ctrl.isClosed) {
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if (wnd.closed) {
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ctrl.addError(new AngelHttpException.notAuthenticated(
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message:
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errorMessage ?? 'Authentication via popup window failed.'));
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ctrl.close();
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timer.cancel();
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sub?.cancel();
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}
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} else
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timer.cancel();
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});
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sub = window.on[eventName ?? 'token'].listen((Event ev) {
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var e = ev as CustomEvent;
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if (!ctrl.isClosed) {
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ctrl.add(e.detail.toString());
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t.cancel();
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ctrl.close();
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sub.cancel();
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}
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});
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return ctrl.stream;
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}
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@override
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Future logout() {
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window.localStorage.remove('token');
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return super.logout();
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}
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}
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