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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 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 | 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, AuthScope } 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; } /** * @deprecated * #### v19 Use [[UserSession.isUserSignedIn]] instead. * * Check if a user is currently signed in. * @return {Boolean} `true` if the user is signed in, `false` if not. */ export function isUserSignedIn() { console.warn('DEPRECATION WARNING: The static isUserSignedIn() function will be deprecated in ' + 'the next major release of blockstack.js. Create an instance of UserSession and call the ' + 'instance method isUserSignedIn().') const userSession = new UserSession() return userSession.isUserSignedIn() } /** * * * @deprecated * #### v19 Use [[UserSession.isUserSignedIn]] instead. * * Generates an authentication request and redirects the user to the Blockstack * browser to approve the sign in request. * * Please note that this requires that the web browser properly handles the * `blockstack:` URL protocol handler. * * Most applications should use this * method for sign in unless they require more fine grained control over how the * authentication request is generated. If your app falls into this category, * use `makeAuthRequest` and `redirectToSignInWithAuthRequest` to build your own sign in process. * * @param {String} [redirectURI=`${window.location.origin}/`] * The location to which the identity provider will redirect the user after * the user approves sign in. * @param {String} [manifestURI=`${window.location.origin}/manifest.json`] * Location of the manifest file. * @param {Array} [scopes=DEFAULT_SCOPE] Defaults to requesting write access to * this app's data store. * An array of strings indicating which permissions this app is requesting. * @return {void} */ export async function redirectToSignIn( redirectURI?: string, manifestURI?: string, scopes?: Array<AuthScope | string>) { console.warn('DEPRECATION WARNING: The static redirectToSignIn() function will be deprecated in the ' + 'next major release of blockstack.js. Create an instance of UserSession and call the ' + 'instance method redirectToSignIn().') const authRequest = await makeAuthRequest(null, redirectURI, manifestURI, scopes) return redirectToSignInWithAuthRequest(authRequest) } /** * @deprecated * #### v19 Use [[UserSession.isSignInPending]] instead. * * 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() } /** * @deprecated * #### v19 Use [[UserSession.getAuthResponseToken]] instead. * * 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 : '' } /** * @deprecated * #### v19 Use [[UserSession.loadUserData]] instead. * * Retrieves the user data object. The user's profile is stored in the key `profile`. * @return {Object} User data object. */ export function loadUserData() { console.warn('DEPRECATION WARNING: The static loadUserData() function will be deprecated in the ' + 'next major release of blockstack.js. Create an instance of UserSession and call the ' + 'instance method loadUserData().') const userSession = new UserSession() return userSession.loadUserData() } /** * @deprecated * #### v19 Use [[UserSession.signUserOut]] instead. * * 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 } } /** * @deprecated * #### v19 Use [[UserSession.redirectToSignInWithAuthRequest]] instead. * * 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 async function redirectToSignInWithAuthRequest( authRequest?: string, blockstackIDHost: string = DEFAULT_BLOCKSTACK_HOST, ): Promise<void> { authRequest = authRequest || (await 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) } /** * @deprecated * #### v19 Use [[UserSession.handlePendingSignIn]] instead. * * 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, '1.3.0') && tokenPayload.blockstackAPIUrl !== null && tokenPayload.blockstackAPIUrl !== undefined) { // override globally Logger.info(`Overriding ${config.network.blockstackAPIUrl} ` + `with ${tokenPayload.blockstackAPIUrl}`) // TODO: this config is never saved so the user node preference // is not respected in later sessions.. config.network.blockstackAPIUrl = tokenPayload.blockstackAPIUrl coreNode = tokenPayload.blockstackAPIUrl } nameLookupURL = `${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 let coreSessionToken = tokenPayload.core_token Eif (isLaterVersion(tokenPayload.version, '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) } catch (e) { Logger.warn('Failed decryption of appPrivateKey, will try to use as given') try { hexStringToECPair(tokenPayload.private_key) } 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 Iif (isLaterVersion(tokenPayload.version, '1.2.0') && tokenPayload.hubUrl !== null && tokenPayload.hubUrl !== undefined) { hubUrl = tokenPayload.hubUrl } if (isLaterVersion(tokenPayload.version, '1.3.0') && tokenPayload.associationToken !== null && tokenPayload.associationToken !== undefined) { gaiaAssociationToken = tokenPayload.associationToken } const userData: UserData = { username: tokenPayload.username, profile: tokenPayload.profile, email: tokenPayload.email, decentralizedID: tokenPayload.iss, identityAddress: getAddressFromDID(tokenPayload.iss), appPrivateKey, coreSessionToken, authResponseToken, hubUrl, coreNode: tokenPayload.blockstackAPIUrl, gaiaAssociationToken } const profileURL = tokenPayload.profile_url 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 = await extractProfile(wrappedProfile[0].token) userData.profile = profile } } else { userData.profile = tokenPayload.profile } sessionData.userData = userData caller.store.setSessionData(sessionData) return userData } |