457 lines
13 KiB
JavaScript
457 lines
13 KiB
JavaScript
import Ember from 'ember';
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import { resolve, reject } from 'rsvp';
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import { assign } from '@ember/polyfills';
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import { isArray } from '@ember/array';
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import { computed, get } from '@ember/object';
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import { capitalize } from '@ember/string';
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import fetch from 'fetch';
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import { getOwner } from '@ember/application';
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import Service, { inject as service } from '@ember/service';
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import getStorage from '../lib/token-storage';
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import ENV from 'vault/config/environment';
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import { supportedAuthBackends } from 'vault/helpers/supported-auth-backends';
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import { task, timeout } from 'ember-concurrency';
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const TOKEN_SEPARATOR = '☃';
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const TOKEN_PREFIX = 'vault-';
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const ROOT_PREFIX = '_root_';
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const BACKENDS = supportedAuthBackends();
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export { TOKEN_SEPARATOR, TOKEN_PREFIX, ROOT_PREFIX };
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export default Service.extend({
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permissions: service(),
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namespaceService: service('namespace'),
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IDLE_TIMEOUT: 3 * 60e3,
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expirationCalcTS: null,
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isRenewing: false,
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mfaErrors: null,
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init() {
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this._super(...arguments);
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this.checkForRootToken();
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},
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clusterAdapter() {
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return getOwner(this).lookup('adapter:cluster');
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},
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tokens: computed(function () {
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return this.getTokensFromStorage() || [];
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}),
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generateTokenName({ backend, clusterId }, policies) {
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return (policies || []).includes('root')
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? `${TOKEN_PREFIX}${ROOT_PREFIX}${TOKEN_SEPARATOR}${clusterId}`
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: `${TOKEN_PREFIX}${backend}${TOKEN_SEPARATOR}${clusterId}`;
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},
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backendFromTokenName(tokenName) {
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return tokenName.includes(`${TOKEN_PREFIX}${ROOT_PREFIX}`)
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? 'token'
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: tokenName.slice(TOKEN_PREFIX.length).split(TOKEN_SEPARATOR)[0];
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},
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storage(tokenName) {
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if (
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tokenName &&
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tokenName.indexOf(`${TOKEN_PREFIX}${ROOT_PREFIX}`) === 0 &&
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this.environment() !== 'development'
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) {
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return getStorage('memory');
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} else {
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return getStorage();
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}
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},
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environment() {
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return ENV.environment;
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},
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now() {
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return Date.now();
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},
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setCluster(clusterId) {
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this.set('activeCluster', clusterId);
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},
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ajax(url, method, options) {
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const defaults = {
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url,
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method,
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dataType: 'json',
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headers: {
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'X-Vault-Token': this.currentToken,
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},
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};
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let namespace = typeof options.namespace === 'undefined' ? this.namespaceService.path : options.namespace;
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if (namespace) {
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defaults.headers['X-Vault-Namespace'] = namespace;
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}
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let opts = assign(defaults, options);
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return fetch(url, {
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method: opts.method || 'GET',
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headers: opts.headers || {},
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}).then((response) => {
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if (response.status === 204) {
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return resolve();
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} else if (response.status >= 200 && response.status < 300) {
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return resolve(response.json());
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} else {
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return reject(response);
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}
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});
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},
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renewCurrentToken() {
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let namespace = this.authData.userRootNamespace;
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const url = '/v1/auth/token/renew-self';
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return this.ajax(url, 'POST', { namespace });
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},
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revokeCurrentToken() {
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let namespace = this.authData.userRootNamespace;
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const url = '/v1/auth/token/revoke-self';
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return this.ajax(url, 'POST', { namespace });
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},
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calculateExpiration(resp) {
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let now = this.now();
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const ttl = resp.ttl || resp.lease_duration;
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const tokenExpirationEpoch = now + ttl * 1e3;
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this.set('expirationCalcTS', now);
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return {
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ttl,
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tokenExpirationEpoch,
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};
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},
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persistAuthData() {
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let [firstArg, resp] = arguments;
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let tokens = this.tokens;
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let currentNamespace = this.namespaceService.path || '';
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let tokenName;
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let options;
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let backend;
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if (typeof firstArg === 'string') {
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tokenName = firstArg;
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backend = this.backendFromTokenName(tokenName);
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} else {
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options = firstArg;
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backend = options.backend;
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}
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let currentBackend = BACKENDS.findBy('type', backend);
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let displayName;
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if (isArray(currentBackend.displayNamePath)) {
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displayName = currentBackend.displayNamePath.map((name) => get(resp, name)).join('/');
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} else {
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displayName = get(resp, currentBackend.displayNamePath);
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}
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let { entity_id, policies, renewable, namespace_path } = resp;
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// here we prefer namespace_path if its defined,
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// else we look and see if there's already a namespace saved
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// and then finally we'll use the current query param if the others
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// haven't set a value yet
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// all of the typeof checks are necessary because the root namespace is ''
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let userRootNamespace = namespace_path && namespace_path.replace(/\/$/, '');
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// if we're logging in with token and there's no namespace_path, we can assume
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// that the token belongs to the root namespace
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if (backend === 'token' && !userRootNamespace) {
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userRootNamespace = '';
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}
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if (typeof userRootNamespace === 'undefined') {
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if (this.authData) {
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userRootNamespace = this.authData.userRootNamespace;
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}
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}
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if (typeof userRootNamespace === 'undefined') {
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userRootNamespace = currentNamespace;
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}
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let data = {
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userRootNamespace,
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displayName,
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backend: currentBackend,
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token: resp.client_token || get(resp, currentBackend.tokenPath),
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policies,
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renewable,
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entity_id,
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};
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tokenName = this.generateTokenName(
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{
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backend,
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clusterId: (options && options.clusterId) || this.activeCluster,
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},
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resp.policies
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);
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if (resp.renewable) {
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assign(data, this.calculateExpiration(resp));
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}
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if (!data.displayName) {
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data.displayName = (this.getTokenData(tokenName) || {}).displayName;
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}
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tokens.addObject(tokenName);
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this.set('tokens', tokens);
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this.set('allowExpiration', false);
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this.setTokenData(tokenName, data);
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return resolve({
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namespace: currentNamespace || data.userRootNamespace,
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token: tokenName,
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isRoot: policies.includes('root'),
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});
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},
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setTokenData(token, data) {
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this.storage(token).setItem(token, data);
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},
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getTokenData(token) {
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return this.storage(token).getItem(token);
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},
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removeTokenData(token) {
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return this.storage(token).removeItem(token);
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},
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tokenExpirationDate: computed('currentTokenName', 'expirationCalcTS', function () {
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const tokenName = this.currentTokenName;
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if (!tokenName) {
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return;
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}
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const { tokenExpirationEpoch } = this.getTokenData(tokenName);
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const expirationDate = new Date(0);
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return tokenExpirationEpoch ? expirationDate.setUTCMilliseconds(tokenExpirationEpoch) : null;
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}),
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get tokenExpired() {
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const expiration = this.tokenExpirationDate;
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return expiration ? this.now() >= expiration : null;
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},
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renewAfterEpoch: computed('currentTokenName', 'expirationCalcTS', function () {
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const tokenName = this.currentTokenName;
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let { expirationCalcTS } = this;
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const data = this.getTokenData(tokenName);
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if (!tokenName || !data || !expirationCalcTS) {
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return null;
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}
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const { ttl, renewable } = data;
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// renew after last expirationCalc time + half of the ttl (in ms)
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return renewable ? Math.floor((ttl * 1e3) / 2) + expirationCalcTS : null;
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}),
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renew() {
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const tokenName = this.currentTokenName;
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const currentlyRenewing = this.isRenewing;
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if (currentlyRenewing) {
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return;
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}
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this.isRenewing = true;
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return this.renewCurrentToken().then(
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(resp) => {
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this.isRenewing = false;
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return this.persistAuthData(tokenName, resp.data || resp.auth);
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},
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(e) => {
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this.isRenewing = false;
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throw e;
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}
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);
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},
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checkShouldRenew: task(function* () {
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while (true) {
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if (Ember.testing) {
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return;
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}
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yield timeout(5000);
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if (this.shouldRenew()) {
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yield this.renew();
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}
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}
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}).on('init'),
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shouldRenew() {
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const now = this.now();
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const lastFetch = this.lastFetch;
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const renewTime = this.renewAfterEpoch;
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if (!this.currentTokenName || this.tokenExpired || this.allowExpiration || !renewTime) {
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return false;
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}
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if (lastFetch && now - lastFetch >= this.IDLE_TIMEOUT) {
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this.set('allowExpiration', true);
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return false;
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}
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if (now >= renewTime) {
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return true;
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}
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return false;
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},
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setLastFetch(timestamp) {
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const now = this.now();
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this.set('lastFetch', timestamp);
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// if expiration was allowed and we're over half the ttl we want to go ahead and renew here
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if (this.allowExpiration && now >= this.renewAfterEpoch) {
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this.renew();
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}
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this.set('allowExpiration', false);
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},
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getTokensFromStorage(filterFn) {
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return this.storage()
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.keys()
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.reject((key) => {
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return key.indexOf(TOKEN_PREFIX) !== 0 || (filterFn && filterFn(key));
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});
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},
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checkForRootToken() {
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if (this.environment() === 'development') {
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return;
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}
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this.getTokensFromStorage().forEach((key) => {
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const data = this.getTokenData(key);
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if (data && data.policies && data.policies.includes('root')) {
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this.removeTokenData(key);
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}
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});
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},
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_parseMfaResponse(mfa_requirement) {
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// mfa_requirement response comes back in a shape that is not easy to work with
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// convert to array of objects and add necessary properties to satisfy the view
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if (mfa_requirement) {
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const { mfa_request_id, mfa_constraints } = mfa_requirement;
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let requiresAction; // if multiple constraints or methods or passcode input is needed further action will be required
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const constraints = [];
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for (let key in mfa_constraints) {
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const methods = mfa_constraints[key].any;
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const isMulti = methods.length > 1;
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if (isMulti || methods.findBy('uses_passcode')) {
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requiresAction = true;
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}
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// friendly label for display in MfaForm
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methods.forEach((m) => {
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const typeFormatted = m.type === 'totp' ? m.type.toUpperCase() : capitalize(m.type);
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m.label = `${typeFormatted} ${m.uses_passcode ? 'passcode' : 'push notification'}`;
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});
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constraints.push({
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name: key,
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methods,
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selectedMethod: isMulti ? null : methods[0],
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});
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}
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return {
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mfa_requirement: { mfa_request_id, mfa_constraints: constraints },
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requiresAction,
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};
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}
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return {};
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},
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async authenticate(/*{clusterId, backend, data, selectedAuth}*/) {
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const [options] = arguments;
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const adapter = this.clusterAdapter();
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let resp = await adapter.authenticate(options);
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const { mfa_requirement, requiresAction } = this._parseMfaResponse(resp.auth?.mfa_requirement);
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if (mfa_requirement) {
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if (requiresAction) {
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return { mfa_requirement };
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}
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// silently make request to validate endpoint when passcode is not required
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try {
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resp = await adapter.mfaValidate(mfa_requirement);
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} catch (e) {
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// it's not clear in the auth-form component whether mfa validation is taking place for non-totp method
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// since mfa errors display a screen rather than flash message handle separately
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this.set('mfaErrors', this.handleError(e));
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throw e;
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}
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}
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return this.authSuccess(options, resp.auth || resp.data);
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},
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async totpValidate({ mfa_requirement, ...options }) {
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const resp = await this.clusterAdapter().mfaValidate(mfa_requirement);
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return this.authSuccess(options, resp.auth || resp.data);
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},
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async authSuccess(options, response) {
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// persist selectedAuth to sessionStorage to rehydrate auth form on logout
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sessionStorage.setItem('selectedAuth', options.selectedAuth);
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const authData = await this.persistAuthData(options, response, this.namespaceService.path);
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await this.permissions.getPaths.perform();
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return authData;
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},
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handleError(e) {
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if (e.errors) {
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return e.errors.map((error) => {
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if (error.detail) {
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return error.detail;
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}
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return error;
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});
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}
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return [e];
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},
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getAuthType() {
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// check sessionStorage first
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const selectedAuth = sessionStorage.getItem('selectedAuth');
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if (selectedAuth) return selectedAuth;
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// fallback to authData which discerns backend type from token
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return this.authData ? this.authData.backend.type : null;
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},
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deleteCurrentToken() {
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const tokenName = this.currentTokenName;
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this.deleteToken(tokenName);
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this.removeTokenData(tokenName);
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},
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deleteToken(tokenName) {
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const tokenNames = this.tokens.without(tokenName);
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this.removeTokenData(tokenName);
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this.set('tokens', tokenNames);
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},
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// returns the key for the token to use
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currentTokenName: computed('activeCluster', 'tokens', 'tokens.[]', function () {
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const regex = new RegExp(this.activeCluster);
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return this.tokens.find((key) => regex.test(key));
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}),
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currentToken: computed('currentTokenName', function () {
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const name = this.currentTokenName;
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const data = name && this.getTokenData(name);
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// data.token is undefined so that's why it returns current token undefined
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return name && data ? data.token : null;
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}),
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authData: computed('currentTokenName', function () {
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const token = this.currentTokenName;
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if (!token) {
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return;
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}
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const backend = this.backendFromTokenName(token);
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const stored = this.getTokenData(token);
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return assign(stored, {
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backend: BACKENDS.findBy('type', backend),
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});
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}),
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});
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