blockstack

<!doctype html> <html lang="en"> <head> <title>Code coverage report for src/auth/authApp.ts</title> <meta charset="utf-8" /> <link rel="stylesheet" href="../../prettify.css" /> <link rel="stylesheet" href="../../base.css" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <style type='text/css'> .coverage-summary .sorter { background-image: url(../../sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1> <a href="../../index.html">All files</a> / <a href="index.html">src/auth</a> authApp.ts </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 58.12% Statements 68/117 </div> <div class='fl pad1y space-right2'> 54.29% Branches 38/70 </div> <div class='fl pad1y space-right2'> 11.11% Functions 1/9 </div> <div class='fl pad1y space-right2'> 58.12% Lines 68/117 </div> </div> Press n or j to go to the next uncovered block, b, p or k for the previous block. </div> <div class='status-line medium'></div> <pre><table 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      1x                                                                                       1x           7x 7x 7x                               7x       7x   7x 1x     6x     6x 6x 6x 6x     6x 6x     6x     2x       2x 2x     6x     6x 6x     6x 6x         6x 6x 6x 6x 6x 6x 6x   1x 1x 1x   1x         5x                       5x   5x       5x   1x     5x                         5x 5x                     5x     5x 5x   5x    </td><td class="text"><pre class="prettyprint lang-js">  import * as queryString from 'query-string' import { decodeToken } from 'jsontokens' import { verifyAuthResponse } from './authVerification' import { isLaterVersion, getGlobalObject, getGlobalObjects } from '../utils' import { fetchPrivate } from '../fetchUtil' import { getAddressFromDID } from '../dids' import { LoginFailedError } from '../errors' import { decryptPrivateKey, makeAuthRequest } from './authMessages' import { BLOCKSTACK_DEFAULT_GAIA_HUB_URL, DEFAULT_BLOCKSTACK_HOST, NAME_LOOKUP_PATH } from './authConstants' import { extractProfile } from '../profiles/profileTokens' import { UserSession } from './userSession' import { config } from '../config' import { Logger } from '../logger' import { GaiaHubConfig } from '../storage/hub' import { protocolEchoReplyDetection } from './protocolEchoDetection' import { launchCustomProtocol } from './protocolLaunch' import { hexStringToECPair } from '../keys'     const DEFAULT_PROFILE = { '@type': 'Person', '@context': 'http://schema.org' }   /** * Returned from the [[UserSession.loadUserData]] function. */ export interface UserData { // public: the blockstack ID (for example: stackerson.id or alice.blockstack.id) username: string; // public: the email address for the user. only available if the `email` // scope is requested, and if the user has entered a valid email into // their profile. // // **Note**: Blockstack does not require email validation // for users for privacy reasons and blah blah (something like this, idk) email?: string; // probably public: (a quick description of what this is, and a link to the // DID foundation and/or the blockstack docs related to DID, idk) decentralizedID: string; // probably private: looks like it happens to be the btc address but idk // the value of establishing this as a supported field identityAddress: string; // probably public: this is an advanced feature, I think many app devs // using our more advanced encryption functions (as opposed to putFile/getFile), // are probably using this. seems useful to explain. appPrivateKey: string; // maybe public: possibly useful for advanced devs / webapps. I see an opportunity // to make a small plug about "user owned data" here, idk. hubUrl: string; coreNode: string; // maybe private: this would be an advanced field for app devs to use. authResponseToken: string; // private: does not get sent to webapp at all. coreSessionToken?: string; // private: does not get sent to webapp at all. gaiaAssociationToken?: string; // public: this is the proper `Person` schema json for the user. // This is the data that gets used when the `new blockstack.Person(profile)` class is used. profile: any; // private: does not get sent to webapp at all. gaiaHubConfig?: GaiaHubConfig; }   /** * Check if there is a authentication request that hasn't been handled. * * Also checks for a protocol echo reply (which if detected then the page * will be automatically redirected after this call). * * @return {Boolean} `true` if there is a pending sign in, otherwise `false` */ export function isSignInPending() { try { const isProtocolEcho = protocolEchoReplyDetection() if (isProtocolEcho) { Logger.info('protocolEchoReply detected from isSignInPending call, the page is about to redirect.') return true } } catch (error) { Logger.error(`Error checking for protocol echo reply isSignInPending: ${error}`) } return !!getAuthResponseToken() }   /** * Retrieve the authentication token from the URL query * @return {String} the authentication token if it exists otherwise `null` */ export function getAuthResponseToken(): string { const search = getGlobalObject( 'location', { throwIfUnavailable: true, usageDesc: 'getAuthResponseToken' } ).search const queryDict = queryString.parse(search) return queryDict.authResponse ? <string>queryDict.authResponse : '' }   /** * Sign the user out and optionally redirect to given location. * @param redirectURL * Location to redirect user to after sign out. * Only used in environments with `window` available */ export function signUserOut(redirectURL?: string, caller?: UserSession) { const userSession = caller || new UserSession() userSession.store.deleteSessionData() if (redirectURL) { getGlobalObject( 'location', { throwIfUnavailable: true, usageDesc: 'signUserOut' } ).href = redirectURL } }   /** * Redirects the user to the Blockstack browser to approve the sign in request * given. * * The user is redirected to the `blockstackIDHost` if the `blockstack:` * protocol handler is not detected. Please note that the protocol handler detection * does not work on all browsers. * @param {String} authRequest - the authentication request generated by `makeAuthRequest` * @param {String} blockstackIDHost - the URL to redirect the user to if the blockstack * protocol handler is not detected * @return {void} */ export function redirectToSignInWithAuthRequest( authRequest?: string, blockstackIDHost: string = DEFAULT_BLOCKSTACK_HOST, ): void { authRequest = authRequest || makeAuthRequest() const httpsURI = `${blockstackIDHost}?authRequest=${authRequest}`   const { navigator, location } = getGlobalObjects( ['navigator', 'location'], { throwIfUnavailable: true, usageDesc: 'redirectToSignInWithAuthRequest' } )   // If they're on a mobile OS, always redirect them to HTTPS site if (/Android|webOS|iPhone|iPad|iPod|Opera Mini/i.test(navigator.userAgent)) { Logger.info('detected mobile OS, sending to https') location.href = httpsURI return }   function successCallback() { Logger.info('protocol handler detected') // The detection function should open the link for us }   function failCallback() { Logger.warn('protocol handler not detected') location.href = httpsURI }   launchCustomProtocol(authRequest, successCallback, failCallback) }   /** * Try to process any pending sign in request by returning a `Promise` that resolves * to the user data object if the sign in succeeds. * * @param {String} nameLookupURL - the endpoint against which to verify public * keys match claimed username * @param {String} authResponseToken - the signed authentication response token * @param {String} transitKey - the transit private key that corresponds to the transit public key * that was provided in the authentication request * @return {Promise} that resolves to the user data object if successful and rejects * if handling the sign in request fails or there was no pending sign in request. */ export async function handlePendingSignIn( nameLookupURL: string = '', authResponseToken: string = getAuthResponseToken(), transitKey?: string, caller?: UserSession ): Promise<UserData> { try { const isProtocolEcho = protocolEchoReplyDetection() Iif (isProtocolEcho) { const msg = 'handlePendingSignIn called while protocolEchoReply was detected, and ' + 'the page is about to redirect. This function will resolve with an error after ' + 'several seconds, if the page was not redirected for some reason.' Logger.info(msg) return new Promise<UserData>((_resolve, reject) => { setTimeout(() => { Logger.error('Page should have redirected by now. handlePendingSignIn will now throw.') reject(msg) }, 3000) }) } } catch (error) { Logger.error(`Error checking for protocol echo reply handlePendingSignIn: ${error}`) }   Iif (!caller) { caller = new UserSession() }   const sessionData = caller.store.getSessionData()   if (sessionData.userData) { throw new LoginFailedError('Existing user session found.') }   Iif (!transitKey) { transitKey = caller.store.getSessionData().transitKey } Eif (!nameLookupURL) { let coreNode = caller.appConfig && caller.appConfig.coreNode Eif (!coreNode) { coreNode = config.network.blockstackAPIUrl }   const tokenPayload = decodeToken(authResponseToken).payload Iif (typeof tokenPayload === 'string') { throw new Error('Unexpected token payload type of string') } if (isLaterVersion(tokenPayload.version as string, '1.3.0') && tokenPayload.blockstackAPIUrl !== null && tokenPayload.blockstackAPIUrl !== undefined) { // override globally Logger.info(`Overriding ${config.network.blockstackAPIUrl} ` + `with ${tokenPayload.blockstackAPIUrl}`) // TODO: this config is never saved so the user node preference // is not respected in later sessions.. config.network.blockstackAPIUrl = tokenPayload.blockstackAPIUrl as string coreNode = tokenPayload.blockstackAPIUrl as string } nameLookupURL = `${coreNode}${NAME_LOOKUP_PATH}` } const isValid = await verifyAuthResponse(authResponseToken, nameLookupURL) Iif (!isValid) { throw new LoginFailedError('Invalid authentication response.') } const tokenPayload = decodeToken(authResponseToken).payload Iif (typeof tokenPayload === 'string') { throw new Error('Unexpected token payload type of string') }   // TODO: real version handling let appPrivateKey = tokenPayload.private_key as string let coreSessionToken = tokenPayload.core_token as string Eif (isLaterVersion(tokenPayload.version as string, '1.1.0')) { Eif (transitKey !== undefined && transitKey != null) { Eif (tokenPayload.private_key !== undefined && tokenPayload.private_key !== null) { try { appPrivateKey = await decryptPrivateKey(transitKey, tokenPayload.private_key as string) } catch (e) { Logger.warn('Failed decryption of appPrivateKey, will try to use as given') try { hexStringToECPair(tokenPayload.private_key as string) } catch (ecPairError) { throw new LoginFailedError('Failed decrypting appPrivateKey. Usually means' + ' that the transit key has changed during login.') } } } Iif (coreSessionToken !== undefined && coreSessionToken !== null) { try { coreSessionToken = await decryptPrivateKey(transitKey, coreSessionToken) } catch (e) { Logger.info('Failed decryption of coreSessionToken, will try to use as given') } } } else { throw new LoginFailedError('Authenticating with protocol > 1.1.0 requires transit' + ' key, and none found.') } } let hubUrl = BLOCKSTACK_DEFAULT_GAIA_HUB_URL let gaiaAssociationToken: string Iif (isLaterVersion(tokenPayload.version as string, '1.2.0') && tokenPayload.hubUrl !== null && tokenPayload.hubUrl !== undefined) { hubUrl = tokenPayload.hubUrl as string } if (isLaterVersion(tokenPayload.version as string, '1.3.0') && tokenPayload.associationToken !== null && tokenPayload.associationToken !== undefined) { gaiaAssociationToken = tokenPayload.associationToken as string }   const userData: UserData = { username: tokenPayload.username as string, profile: tokenPayload.profile, email: tokenPayload.email as string, decentralizedID: tokenPayload.iss, identityAddress: getAddressFromDID(tokenPayload.iss), appPrivateKey, coreSessionToken, authResponseToken, hubUrl, coreNode: tokenPayload.blockstackAPIUrl as string, gaiaAssociationToken } const profileURL = tokenPayload.profile_url as string Iif (!userData.profile && profileURL) { const response = await fetchPrivate(profileURL) if (!response.ok) { // return blank profile if we fail to fetch userData.profile = Object.assign({}, DEFAULT_PROFILE) } else { const responseText = await response.text() const wrappedProfile = JSON.parse(responseText) const profile = extractProfile(wrappedProfile[0].token) userData.profile = profile } } else { userData.profile = tokenPayload.profile } sessionData.userData = userData caller.store.setSessionData(sessionData) return userData }  </pre></td></tr> </table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="https://istanbul.js.org/" target="_blank">istanbul</a> at Mon Aug 24 2020 16:23:18 GMT-0400 (Eastern Daylight Time) </div> </div> <script src="../../prettify.js"></script> <script> window.onload = function () { if (typeof prettyPrint === 'function') { prettyPrint(); } }; </script> <script src="../../sorter.js"></script> <script src="../../block-navigation.js"></script> </body> </html>