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index.js
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/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import * as base64js from 'base64-js';
import * as sha from 'js-sha256';
import { Plugins } from '@capacitor/core';
const sha256 = sha.default.sha256;
const cap = Plugins;
export var Keycloak = function (config) {
if (!(this instanceof Keycloak)) {
return new Keycloak(config);
}
var kc = this;
var adapter;
var refreshQueue = [];
var callbackStorage;
var loginIframe = {
enable: true,
callbackList: [],
interval: 5
};
var scripts = document.getElementsByTagName('script');
for (var i = 0; i < scripts.length; i++) {
if ((scripts[i].src.indexOf('keycloak.js') !== -1 || scripts[i].src.indexOf('keycloak.min.js') !== -1) && scripts[i].src.indexOf('version=') !== -1) {
kc.iframeVersion = scripts[i].src.substring(scripts[i].src.indexOf('version=') + 8).split('&')[0];
}
}
var useNonce = true;
kc.init = function (initOptions) {
kc.authenticated = false;
callbackStorage = createCallbackStorage();
var adapters = ['default', 'cordova', 'cordova-native', 'capacitor'];
if (initOptions && adapters.indexOf(initOptions.adapter) > -1) {
adapter = loadAdapter(initOptions.adapter);
} else if (initOptions && typeof initOptions.adapter === "object") {
adapter = initOptions.adapter;
} else {
if (window.Cordova || window.cordova) {
adapter = loadAdapter('capacitor');
} else {
adapter = loadAdapter();
}
}
if (initOptions) {
if (typeof initOptions.useNonce !== 'undefined') {
useNonce = initOptions.useNonce;
}
if (typeof initOptions.checkLoginIframe !== 'undefined') {
loginIframe.enable = initOptions.checkLoginIframe;
}
if (initOptions.checkLoginIframeInterval) {
loginIframe.interval = initOptions.checkLoginIframeInterval;
}
if (initOptions.promiseType === 'native') {
kc.useNativePromise = typeof Promise === "function";
} else {
kc.useNativePromise = false;
}
if (initOptions.onLoad === 'login-required') {
kc.loginRequired = true;
}
if (initOptions.responseMode) {
if (initOptions.responseMode === 'query' || initOptions.responseMode === 'fragment') {
kc.responseMode = initOptions.responseMode;
} else {
throw 'Invalid value for responseMode';
}
}
if (initOptions.flow) {
switch (initOptions.flow) {
case 'standard':
kc.responseType = 'code';
break;
case 'implicit':
kc.responseType = 'id_token token';
break;
case 'hybrid':
kc.responseType = 'code id_token token';
break;
default:
throw 'Invalid value for flow';
}
kc.flow = initOptions.flow;
}
if (initOptions.timeSkew != null) {
kc.timeSkew = initOptions.timeSkew;
}
if(initOptions.redirectUri) {
kc.redirectUri = initOptions.redirectUri;
}
if (initOptions.pkceMethod) {
if (initOptions.pkceMethod !== "S256") {
throw 'Invalid value for pkceMethod';
}
kc.pkceMethod = initOptions.pkceMethod;
}
}
if (!kc.responseMode) {
kc.responseMode = 'fragment';
}
if (!kc.responseType) {
kc.responseType = 'code';
kc.flow = 'standard';
}
var promise = createPromise(false);
var initPromise = createPromise(true);
initPromise.promise.success(function() {
kc.onReady && kc.onReady(kc.authenticated);
promise.setSuccess(kc.authenticated);
}).error(function(errorData) {
promise.setError(errorData);
});
var configPromise = loadConfig(config);
function onLoad() {
var doLogin = function(prompt) {
if (!prompt) {
options.prompt = 'none';
}
kc.login(options).success(function () {
initPromise.setSuccess();
}).error(function () {
initPromise.setError();
});
}
var options = {};
switch (initOptions.onLoad) {
case 'check-sso':
if (loginIframe.enable) {
setupCheckLoginIframe().success(function() {
checkLoginIframe().success(function (unchanged) {
if (!unchanged) {
doLogin(false);
} else {
initPromise.setSuccess();
}
}).error(function () {
initPromise.setError();
});
});
} else {
doLogin(false);
}
break;
case 'login-required':
doLogin(true);
break;
default:
throw 'Invalid value for onLoad';
}
}
function processInit() {
var callback = parseCallback(window.location.href);
if (callback) {
window.history.replaceState(window.history.state, null, callback.newUrl);
}
if (callback && callback.valid) {
return setupCheckLoginIframe().success(function() {
processCallback(callback, initPromise);
}).error(function (e) {
initPromise.setError();
});
} else if (initOptions) {
if (initOptions.token && initOptions.refreshToken) {
setToken(initOptions.token, initOptions.refreshToken, initOptions.idToken);
if (loginIframe.enable) {
setupCheckLoginIframe().success(function() {
checkLoginIframe().success(function (unchanged) {
if (unchanged) {
kc.onAuthSuccess && kc.onAuthSuccess();
initPromise.setSuccess();
scheduleCheckIframe();
} else {
initPromise.setSuccess();
}
}).error(function () {
initPromise.setError();
});
});
} else {
kc.updateToken(-1).success(function() {
kc.onAuthSuccess && kc.onAuthSuccess();
initPromise.setSuccess();
}).error(function() {
kc.onAuthError && kc.onAuthError();
if (initOptions.onLoad) {
onLoad();
} else {
initPromise.setError();
}
});
}
} else if (initOptions.onLoad) {
onLoad();
} else {
initPromise.setSuccess();
}
} else {
initPromise.setSuccess();
}
}
configPromise.success(processInit);
configPromise.error(function() {
promise.setError();
});
return promise.promise;
}
kc.login = function (options) {
return adapter.login(options);
}
function generateRandomData(len) {
// use web crypto APIs if possible
var array = null;
var crypto = window.crypto || window.msCrypto;
if (crypto && crypto.getRandomValues && window.Uint8Array) {
array = new Uint8Array(len);
crypto.getRandomValues(array);
return array;
}
// fallback to Math random
array = new Array(len);
for (var j = 0; j < array.length; j++) {
array[j] = Math.floor(256 * Math.random());
}
return array;
}
function generateCodeVerifier(len) {
return generateRandomString(len, 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789');
}
function generateRandomString(len, alphabet){
var randomData = generateRandomData(len);
var chars = new Array(len);
for (var i = 0; i < len; i++) {
chars[i] = alphabet.charCodeAt(randomData[i] % alphabet.length);
}
return String.fromCharCode.apply(null, chars);
}
function generatePkceChallenge(pkceMethod, codeVerifier) {
switch (pkceMethod) {
// The use of the "plain" method is considered insecure and therefore not supported.
case "S256":
// hash codeVerifier, then encode as url-safe base64 without padding
var hashBytes = new Uint8Array(sha256.arrayBuffer(codeVerifier));
var encodedHash = base64js.fromByteArray(hashBytes)
.replace(/\+/g, '-')
.replace(/\//g, '_')
.replace(/\=/g, '');
return encodedHash;
default:
throw 'Invalid value for pkceMethod';
}
}
kc.createLoginUrl = function(options) {
var state = createUUID();
var nonce = createUUID();
var redirectUri = adapter.redirectUri(options);
var callbackState = {
state: state,
nonce: nonce,
redirectUri: encodeURIComponent(redirectUri)
};
if (options && options.prompt) {
callbackState.prompt = options.prompt;
}
var baseUrl;
if (options && options.action == 'register') {
baseUrl = kc.endpoints.register();
} else {
baseUrl = kc.endpoints.authorize();
}
var scope;
if (options && options.scope) {
if (options.scope.indexOf("openid") != -1) {
scope = options.scope;
} else {
scope = "openid " + options.scope;
}
} else {
scope = "openid";
}
var url = baseUrl
+ '?client_id=' + encodeURIComponent(kc.clientId)
+ '&redirect_uri=' + encodeURIComponent(redirectUri)
+ '&state=' + encodeURIComponent(state)
+ '&response_mode=' + encodeURIComponent(kc.responseMode)
+ '&response_type=' + encodeURIComponent(kc.responseType)
+ '&scope=' + encodeURIComponent(scope);
if (useNonce) {
url = url + '&nonce=' + encodeURIComponent(nonce);
}
if (options && options.prompt) {
url += '&prompt=' + encodeURIComponent(options.prompt);
}
if (options && options.maxAge) {
url += '&max_age=' + encodeURIComponent(options.maxAge);
}
if (options && options.loginHint) {
url += '&login_hint=' + encodeURIComponent(options.loginHint);
}
if (options && options.idpHint) {
url += '&kc_idp_hint=' + encodeURIComponent(options.idpHint);
}
if (options && options.locale) {
url += '&ui_locales=' + encodeURIComponent(options.locale);
}
if (options && options.kcLocale) {
url += '&kc_locale=' + encodeURIComponent(options.kcLocale);
}
if (kc.pkceMethod) {
var codeVerifier = generateCodeVerifier(96);
callbackState.pkceCodeVerifier = codeVerifier;
var pkceChallenge = generatePkceChallenge(kc.pkceMethod, codeVerifier);
url += '&code_challenge=' + pkceChallenge;
url += '&code_challenge_method=' + kc.pkceMethod;
}
callbackStorage.add(callbackState);
return url;
}
kc.logout = function(options) {
return adapter.logout(options);
}
kc.createLogoutUrl = function(options) {
var url = kc.endpoints.logout()
+ '?redirect_uri=' + encodeURIComponent(adapter.redirectUri(options, false));
return url;
}
kc.register = function (options) {
return adapter.register(options);
}
kc.createRegisterUrl = function(options) {
if (!options) {
options = {};
}
options.action = 'register';
return kc.createLoginUrl(options);
}
kc.createAccountUrl = function(options) {
var realm = getRealmUrl();
var url = undefined;
if (typeof realm !== 'undefined') {
url = realm
+ '/account'
+ '?referrer=' + encodeURIComponent(kc.clientId)
+ '&referrer_uri=' + encodeURIComponent(adapter.redirectUri(options));
}
return url;
}
kc.accountManagement = function() {
return adapter.accountManagement();
}
kc.hasRealmRole = function (role) {
var access = kc.realmAccess;
return !!access && access.roles.indexOf(role) >= 0;
}
kc.hasResourceRole = function(role, resource) {
if (!kc.resourceAccess) {
return false;
}
var access = kc.resourceAccess[resource || kc.clientId];
return !!access && access.roles.indexOf(role) >= 0;
}
kc.loadUserProfile = function() {
var url = getRealmUrl() + '/account';
var req = new XMLHttpRequest();
req.open('GET', url, true);
req.setRequestHeader('Accept', 'application/json');
req.setRequestHeader('Authorization', 'bearer ' + kc.token);
var promise = createPromise(false);
req.onreadystatechange = function () {
if (req.readyState == 4) {
if (req.status == 200) {
kc.profile = JSON.parse(req.responseText);
promise.setSuccess(kc.profile);
} else {
promise.setError();
}
}
}
req.send();
return promise.promise;
}
kc.loadUserInfo = function() {
var url = kc.endpoints.userinfo();
var req = new XMLHttpRequest();
req.open('GET', url, true);
req.setRequestHeader('Accept', 'application/json');
req.setRequestHeader('Authorization', 'bearer ' + kc.token);
var promise = createPromise(false);
req.onreadystatechange = function () {
if (req.readyState == 4) {
if (req.status == 200) {
kc.userInfo = JSON.parse(req.responseText);
promise.setSuccess(kc.userInfo);
} else {
promise.setError();
}
}
}
req.send();
return promise.promise;
}
kc.isTokenExpired = function(minValidity) {
if (!kc.tokenParsed || (!kc.refreshToken && kc.flow != 'implicit' )) {
throw 'Not authenticated';
}
if (kc.timeSkew == null) {
console.info('[KEYCLOAK] Unable to determine if token is expired as timeskew is not set');
return true;
}
var expiresIn = kc.tokenParsed['exp'] - Math.ceil(new Date().getTime() / 1000) + kc.timeSkew;
if (minValidity) {
if (isNaN(minValidity)) {
throw 'Invalid minValidity';
}
expiresIn -= minValidity;
}
return expiresIn < 0;
}
kc.updateToken = function(minValidity) {
var promise = createPromise(false);
if (!kc.refreshToken) {
promise.setError();
return promise.promise;
}
minValidity = minValidity || 5;
var exec = function() {
var refreshToken = false;
if (minValidity == -1) {
refreshToken = true;
console.info('[KEYCLOAK] Refreshing token: forced refresh');
} else if (!kc.tokenParsed || kc.isTokenExpired(minValidity)) {
refreshToken = true;
console.info('[KEYCLOAK] Refreshing token: token expired');
}
if (!refreshToken) {
promise.setSuccess(false);
} else {
var params = 'grant_type=refresh_token&' + 'refresh_token=' + kc.refreshToken;
var url = kc.endpoints.token();
refreshQueue.push(promise);
if (refreshQueue.length == 1) {
var req = new XMLHttpRequest();
req.open('POST', url, true);
req.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
req.withCredentials = true;
if (kc.clientId && kc.clientSecret) {
req.setRequestHeader('Authorization', 'Basic ' + btoa(kc.clientId + ':' + kc.clientSecret));
} else {
params += '&client_id=' + encodeURIComponent(kc.clientId);
}
var timeLocal = new Date().getTime();
req.onreadystatechange = function () {
if (req.readyState == 4) {
if (req.status == 200) {
console.info('[KEYCLOAK] Token refreshed');
timeLocal = (timeLocal + new Date().getTime()) / 2;
var tokenResponse = JSON.parse(req.responseText);
setToken(tokenResponse['access_token'], tokenResponse['refresh_token'], tokenResponse['id_token'], timeLocal);
kc.onAuthRefreshSuccess && kc.onAuthRefreshSuccess();
for (var p = refreshQueue.pop(); p != null; p = refreshQueue.pop()) {
p.setSuccess(true);
}
} else {
console.warn('[KEYCLOAK] Failed to refresh token');
if (req.status == 400) {
kc.clearToken();
}
kc.onAuthRefreshError && kc.onAuthRefreshError();
for (var p = refreshQueue.pop(); p != null; p = refreshQueue.pop()) {
p.setError(true);
}
}
}
};
req.send(params);
}
}
}
if (loginIframe.enable) {
var iframePromise = checkLoginIframe();
iframePromise.success(function() {
exec();
}).error(function() {
promise.setError();
});
} else {
exec();
}
return promise.promise;
}
kc.clearToken = function() {
if (kc.token) {
setToken(null, null, null);
kc.onAuthLogout && kc.onAuthLogout();
if (kc.loginRequired) {
kc.login();
}
}
}
function getRealmUrl() {
if (typeof kc.authServerUrl !== 'undefined') {
if (kc.authServerUrl.charAt(kc.authServerUrl.length - 1) == '/') {
return kc.authServerUrl + 'realms/' + encodeURIComponent(kc.realm);
} else {
return kc.authServerUrl + '/realms/' + encodeURIComponent(kc.realm);
}
} else {
return undefined;
}
}
function getOrigin() {
if (!window.location.origin) {
return window.location.protocol + "//" + window.location.hostname + (window.location.port ? ':' + window.location.port: '');
} else {
return window.location.origin;
}
}
function processCallback(oauth, promise) {
var code = oauth.code;
var error = oauth.error;
var prompt = oauth.prompt;
var timeLocal = new Date().getTime();
if (error) {
if (prompt != 'none') {
var errorData = { error: error, error_description: oauth.error_description };
kc.onAuthError && kc.onAuthError(errorData);
promise && promise.setError(errorData);
} else {
promise && promise.setSuccess();
}
return;
} else if ((kc.flow != 'standard') && (oauth.access_token || oauth.id_token)) {
authSuccess(oauth.access_token, null, oauth.id_token, true);
}
if ((kc.flow != 'implicit') && code) {
var params = 'code=' + code + '&grant_type=authorization_code';
var url = kc.endpoints.token();
var req = new XMLHttpRequest();
req.open('POST', url, true);
req.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
if (kc.clientId && kc.clientSecret) {
req.setRequestHeader('Authorization', 'Basic ' + btoa(kc.clientId + ':' + kc.clientSecret));
} else {
params += '&client_id=' + encodeURIComponent(kc.clientId);
}
params += '&redirect_uri=' + oauth.redirectUri;
if (oauth.pkceCodeVerifier) {
params += '&code_verifier=' + oauth.pkceCodeVerifier;
}
req.withCredentials = true;
req.onreadystatechange = function() {
if (req.readyState == 4) {
if (req.status == 200) {
var tokenResponse = JSON.parse(req.responseText);
authSuccess(tokenResponse['access_token'], tokenResponse['refresh_token'], tokenResponse['id_token'], kc.flow === 'standard');
scheduleCheckIframe();
} else {
kc.onAuthError && kc.onAuthError();
promise && promise.setError();
}
}
};
req.send(params);
}
function authSuccess(accessToken, refreshToken, idToken, fulfillPromise) {
timeLocal = (timeLocal + new Date().getTime()) / 2;
setToken(accessToken, refreshToken, idToken, timeLocal);
if (useNonce && ((kc.tokenParsed && kc.tokenParsed.nonce != oauth.storedNonce) ||
(kc.refreshTokenParsed && kc.refreshTokenParsed.nonce != oauth.storedNonce) ||
(kc.idTokenParsed && kc.idTokenParsed.nonce != oauth.storedNonce))) {
console.info('[KEYCLOAK] Invalid nonce, clearing token');
kc.clearToken();
promise && promise.setError();
} else {
if (fulfillPromise) {
kc.onAuthSuccess && kc.onAuthSuccess();
promise && promise.setSuccess();
}
}
}
}
function loadConfig(url) {
var promise = createPromise(true);
var configUrl;
if (!config) {
configUrl = 'keycloak.json';
} else if (typeof config === 'string') {
configUrl = config;
}
function setupOidcEndoints(oidcConfiguration) {
if (! oidcConfiguration) {
kc.endpoints = {
authorize: function() {
return getRealmUrl() + '/protocol/openid-connect/auth';
},
token: function() {
return getRealmUrl() + '/protocol/openid-connect/token';
},
logout: function() {
return getRealmUrl() + '/protocol/openid-connect/logout';
},
checkSessionIframe: function() {
var src = getRealmUrl() + '/protocol/openid-connect/login-status-iframe.html';
if (kc.iframeVersion) {
src = src + '?version=' + kc.iframeVersion;
}
return src;
},
register: function() {
return getRealmUrl() + '/protocol/openid-connect/registrations';
},
userinfo: function() {
return getRealmUrl() + '/protocol/openid-connect/userinfo';
}
};
} else {
kc.endpoints = {
authorize: function() {
return oidcConfiguration.authorization_endpoint;
},
token: function() {
return oidcConfiguration.token_endpoint;
},
logout: function() {
if (!oidcConfiguration.end_session_endpoint) {
throw "Not supported by the OIDC server";
}
return oidcConfiguration.end_session_endpoint;
},
checkSessionIframe: function() {
if (!oidcConfiguration.check_session_iframe) {
throw "Not supported by the OIDC server";
}
return oidcConfiguration.check_session_iframe;
},
register: function() {
throw 'Redirection to "Register user" page not supported in standard OIDC mode';
},
userinfo: function() {
if (!oidcConfiguration.userinfo_endpoint) {
throw "Not supported by the OIDC server";
}
return oidcConfiguration.userinfo_endpoint;
}
}
}
}
if (configUrl) {
var req = new XMLHttpRequest();
req.open('GET', configUrl, true);
req.setRequestHeader('Accept', 'application/json');
req.onreadystatechange = function () {
if (req.readyState == 4) {
if (req.status == 200 || fileLoaded(req)) {
var config = JSON.parse(req.responseText);
kc.authServerUrl = config['auth-server-url'];
kc.realm = config['realm'];
kc.clientId = config['resource'];
kc.clientSecret = (config['credentials'] || {})['secret'];
setupOidcEndoints(null);
promise.setSuccess();
} else {
promise.setError();
}
}
};
req.send();
} else {
if (!config.clientId) {
throw 'clientId missing';
}
kc.clientId = config.clientId;
kc.clientSecret = (config.credentials || {}).secret;
var oidcProvider = config['oidcProvider'];
if (!oidcProvider) {
if (!config['url']) {
var scripts = document.getElementsByTagName('script');
for (var i = 0; i < scripts.length; i++) {
if (scripts[i].src.match(/.*keycloak\.js/)) {
config.url = scripts[i].src.substr(0, scripts[i].src.indexOf('/js/keycloak.js'));
break;
}
}
}
if (!config.realm) {
throw 'realm missing';
}
kc.authServerUrl = config.url;
kc.realm = config.realm;
setupOidcEndoints(null);
promise.setSuccess();
} else {
if (typeof oidcProvider === 'string') {
var oidcProviderConfigUrl;
if (oidcProvider.charAt(oidcProvider.length - 1) == '/') {
oidcProviderConfigUrl = oidcProvider + '.well-known/openid-configuration';
} else {
oidcProviderConfigUrl = oidcProvider + '/.well-known/openid-configuration';
}
var req = new XMLHttpRequest();
req.open('GET', oidcProviderConfigUrl, true);
req.setRequestHeader('Accept', 'application/json');
req.onreadystatechange = function () {
if (req.readyState == 4) {
if (req.status == 200 || fileLoaded(req)) {
var oidcProviderConfig = JSON.parse(req.responseText);
setupOidcEndoints(oidcProviderConfig);
promise.setSuccess();
} else {
promise.setError();
}
}
};
req.send();
} else {
setupOidcEndoints(oidcProvider);
promise.setSuccess();
}
}
}
return promise.promise;
}
function fileLoaded(xhr) {
return xhr.status == 0 && xhr.responseText && xhr.responseURL.startsWith('file:');
}
function setToken(token, refreshToken, idToken, timeLocal) {
if (kc.tokenTimeoutHandle) {
clearTimeout(kc.tokenTimeoutHandle);
kc.tokenTimeoutHandle = null;
}
if (refreshToken) {
kc.refreshToken = refreshToken;
kc.refreshTokenParsed = decodeToken(refreshToken);
} else {
delete kc.refreshToken;
delete kc.refreshTokenParsed;
}
if (idToken) {
kc.idToken = idToken;
kc.idTokenParsed = decodeToken(idToken);
} else {
delete kc.idToken;
delete kc.idTokenParsed;
}
if (token) {
kc.token = token;
kc.tokenParsed = decodeToken(token);
kc.sessionId = kc.tokenParsed.session_state;
kc.authenticated = true;
kc.subject = kc.tokenParsed.sub;
kc.realmAccess = kc.tokenParsed.realm_access;
kc.resourceAccess = kc.tokenParsed.resource_access;
if (timeLocal) {
kc.timeSkew = Math.floor(timeLocal / 1000) - kc.tokenParsed.iat;
}
if (kc.timeSkew != null) {
console.info('[KEYCLOAK] Estimated time difference between browser and server is ' + kc.timeSkew + ' seconds');
if (kc.onTokenExpired) {
var expiresIn = (kc.tokenParsed['exp'] - (new Date().getTime() / 1000) + kc.timeSkew) * 1000;
console.info('[KEYCLOAK] Token expires in ' + Math.round(expiresIn / 1000) + ' s');
if (expiresIn <= 0) {
kc.onTokenExpired();
} else {
kc.tokenTimeoutHandle = setTimeout(kc.onTokenExpired, expiresIn);
}
}
}
} else {
delete kc.token;
delete kc.tokenParsed;
delete kc.subject;
delete kc.realmAccess;
delete kc.resourceAccess;
kc.authenticated = false;
}
}
function decodeToken(str) {
str = str.split('.')[1];
str = str.replace('/-/g', '+');
str = str.replace('/_/g', '/');
switch (str.length % 4)
{
case 0:
break;
case 2:
str += '==';
break;
case 3:
str += '=';
break;
default:
throw 'Invalid token';
}
str = (str + '===').slice(0, str.length + (str.length % 4));
str = str.replace(/-/g, '+').replace(/_/g, '/');
str = decodeURIComponent(escape(atob(str)));
str = JSON.parse(str);
return str;
}
function createUUID() {
var hexDigits = '0123456789abcdef';
var s = generateRandomString(36, hexDigits).split("");
s[14] = '4';
s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1);
s[8] = s[13] = s[18] = s[23] = '-';
var uuid = s.join('');
return uuid;
}
kc.callback_id = 0;
function createCallbackId() {
var id = '<id: ' + (kc.callback_id++) + (Math.random()) + '>';
return id;
}
function parseCallback(url) {
var oauth = parseCallbackUrl(url);
if (!oauth) {
return;
}
var oauthState = callbackStorage.get(oauth.state);
if (oauthState) {
oauth.valid = true;
oauth.redirectUri = oauthState.redirectUri;
oauth.storedNonce = oauthState.nonce;
oauth.prompt = oauthState.prompt;
oauth.pkceCodeVerifier = oauthState.pkceCodeVerifier;
}
return oauth;
}
function parseCallbackUrl(url) {
var supportedParams;
switch (kc.flow) {
case 'standard':
supportedParams = ['code', 'state', 'session_state'];
break;