react-native-azure-auth
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An React Native module implements Azure AD V2.0 authentication flow
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<h1 class="page-title">token/baseTokenItem.js</h1>
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<pre class="prettyprint source linenums"><code>import { extractIdToken } from './token'
import { Base64 } from 'js-base64'
import Scope from './scope'
const TOKEN_CACHE_KEY_DELIMITER = '$'
function normalizeId(id) {
if (!id) {
throw new Error('Id is null or undefined: ', id)
}
if (typeof id === 'string' || id instanceof String) {
return id.toLocaleLowerCase()
}
if (typeof id === 'number') {
return id.toString()
}
throw new Error('Invalid id: ', id)
}
/**
* Class represent basic token cache item
*
* Note: userId is handled in case insencitive way for token cache keys
*
* @namespace TokenCache.BaseTokenItem
*
* @param {Object} tokenResponse
* @param {String} clientId
*
* @class BaseTokenItem
* @memberof TokenCache
*/
export default class BaseTokenItem {
constructor(tokenResponse, clientId) {
this.clientId = clientId
this.rawIdToken = tokenResponse.idToken
let decodedIdToken = extractIdToken(tokenResponse.idToken)
this.userId = decodedIdToken.preferred_username || decodedIdToken.unique_name || decodedIdToken.sub
this.userName = decodedIdToken.name
if (!this.userName && decodedIdToken.given_name && decodedIdToken.family_name) {
this.userName = decodedIdToken.given_name + ' ' + decodedIdToken.family_name
} else if (!this.userName) {
this.userName = this.userId
}
if (decodedIdToken.tid) {
this.tenantId = decodedIdToken.tid
} else if (decodedIdToken.iss) {
const iss = decodedIdToken.iss
const b2cSuffixIndex = iss.indexOf('.b2clogin.com')
// parse then tenant ID out of the issuer claim
this.tenantId = iss.substring('https://'.length, b2cSuffixIndex > 0 ? b2cSuffixIndex : iss.length)
}
this.idTokenExpireOn = parseInt(decodedIdToken.exp)*1000
}
static createRefreshTokenKey(clientId, userId) {
return Base64.encodeURI(clientId) +
TOKEN_CACHE_KEY_DELIMITER +
Base64.encodeURI(normalizeId(userId))
}
static createAccessTokenKey(clientId, userId, scope) {
return Base64.encodeURI(clientId) +
TOKEN_CACHE_KEY_DELIMITER +
Base64.encodeURI(normalizeId(userId)) +
TOKEN_CACHE_KEY_DELIMITER +
Base64.encodeURI(scope.toString())
}
static createTokenKeyPrefix(clientId, userId) {
let prefix = Base64.encodeURI(clientId) + TOKEN_CACHE_KEY_DELIMITER
if (userId) {
prefix = prefix + Base64.encodeURI(normalizeId(userId))
}
return prefix
}
static scopeFromKey(key) {
const keyParts = key.split(TOKEN_CACHE_KEY_DELIMITER)
if (keyParts[2]) {
const scopeStr = Base64.decode(keyParts[2])
return new Scope(scopeStr)
}
return null
}
toString() {
return JSON.stringify(this)
}
static rawObjectFromJson(objStr) {
if (typeof objStr !== 'string' && !(objStr instanceof String) || objStr.length < 5) {
return null
}
try {
return JSON.parse(objStr)
} catch (e) {
console.warn('Incorect JSON token string: ', objStr)
return null
}
}
}</code></pre>
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