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blockstack

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The Blockstack Javascript library for authentication, identity, and storage.

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/// <reference types="node" /> import { AppConfig } from './appConfig'; import { SessionOptions } from './sessionData'; import { SessionDataStore } from './sessionStore'; import * as authApp from './authApp'; import * as storage from '../storage'; import { GaiaHubConfig } from '../storage/hub'; /** * Represents an instance of a signed in user for a particular app. * * A signed in user has access to two major pieces of information * about the user, the user's private key for that app and the location * of the user's gaia storage bucket for the app. * * A user can be signed in either directly through the interactive * sign in process or by directly providing the app private key. */ export declare class UserSession { appConfig: AppConfig; store: SessionDataStore; constructor(options?: { appConfig?: AppConfig; sessionStore?: SessionDataStore; sessionOptions?: SessionOptions; }); /** * 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 `generateAndStoreTransitKey`, `makeAuthRequest`, * and `redirectToSignInWithAuthRequest` to build your own sign in process. * * @return {void} */ redirectToSignIn(redirectURI?: string, manifestURI?: string, scopes?: string[]): void; /** * Redirects the user to the Blockstack browser to approve the sign in request * given. * * The user is redirected to the authenticator URL specified in the `AppConfig` * 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` * @return {void} */ redirectToSignInWithAuthRequest(authRequest?: string, blockstackIDHost?: string): void; /** * Generates an authentication request that can be sent to the Blockstack * browser for the user to approve sign in. This authentication request can * then be used for sign in by passing it to the `redirectToSignInWithAuthRequest` * method. * * *Note: This method should only be used if you want to roll your own authentication * flow. Typically you'd use `redirectToSignIn` which takes care of this * under the hood.* * @param {string} transitKey - hex-encoded transit key * @param {Number} expiresAt - the time at which this request is no longer valid * @param {Object} extraParams - Any extra parameters you'd like to pass to the authenticator. * Use this to pass options that aren't part of the Blockstack auth spec, but might be supported * by special authenticators. * @return {String} the authentication request */ makeAuthRequest(transitKey?: string, redirectURI?: string, manifestURI?: string, scopes?: string[], appDomain?: string, expiresAt?: number, extraParams?: any): string; /** * Generates a ECDSA keypair to * use as the ephemeral app transit private key * and store in the session * @return {String} the hex encoded private key * */ generateAndStoreTransitKey(): string; /** * Retrieve the authentication token from the URL query * @return {String} the authentication token if it exists otherwise `null` */ getAuthResponseToken(): string; /** * Check if there is a authentication request that hasn't been handled. * @return {Boolean} `true` if there is a pending sign in, otherwise `false` */ isSignInPending(): boolean; /** * Check if a user is currently signed in. * @return {Boolean} `true` if the user is signed in, `false` if not. */ isUserSignedIn(): boolean; /** * 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} authResponseToken - the signed authentication response token * @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. */ handlePendingSignIn(authResponseToken?: string): Promise<authApp.UserData>; /** * Retrieves the user data object. The user's profile is stored in the key `profile`. * @return {Object} User data object. */ loadUserData(): authApp.UserData; /** * 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 */ signUserOut(redirectURL?: string): void; /** * Encrypts the data provided with the app public key. * @param {String|Buffer} content - data to encrypt * @param {Object} [options=null] - options object * @param {String} options.publicKey - the hex string of the ECDSA public * key to use for encryption. If not provided, will use user's appPrivateKey. * @return {String} Stringified ciphertext object */ encryptContent(content: string | Buffer, options?: { publicKey?: string; }): string; /** * Decrypts data encrypted with `encryptContent` with the * transit private key. * @param {String|Buffer} content - encrypted content. * @param {Object} [options=null] - options object * @param {String} options.privateKey - the hex string of the ECDSA private * key to use for decryption. If not provided, will use user's appPrivateKey. * @return {String|Buffer} decrypted content. */ decryptContent(content: string, options?: { privateKey?: string; }): string | Buffer; /** * Stores the data provided in the app's data store to to the file specified. * @param {String} path - the path to store the data in * @param {String|Buffer} content - the data to store in the file * @param {Object} [options=null] - options object * @param {Boolean|String} [options.encrypt=true] - encrypt the data with the app private key * or the provided public key * @param {Boolean} [options.sign=false] - sign the data using ECDSA on SHA256 hashes with * the app private key * @return {Promise} that resolves if the operation succeed and rejects * if it failed */ putFile(path: string, content: string | Buffer, options?: storage.PutFileOptions): Promise<string>; /** * Retrieves the specified file from the app's data store. * @param {String} path - the path to the file to read * @param {Object} [options=null] - options object * @param {Boolean} [options.decrypt=true] - try to decrypt the data with the app private key * @param {String} options.username - the Blockstack ID to lookup for multi-player storage * @param {Boolean} options.verify - Whether the content should be verified, only to be used * when `putFile` was set to `sign = true` * @param {String} options.app - the app to lookup for multi-player storage - * defaults to current origin * @param {String} [options.zoneFileLookupURL=null] - The URL * to use for zonefile lookup. If falsey, this will use the * blockstack.js's getNameInfo function instead. * @returns {Promise} that resolves to the raw data in the file * or rejects with an error */ getFile(path: string, options?: storage.GetFileOptions): Promise<string | ArrayBuffer>; /** * Get the URL for reading a file from an app's data store. * @param {String} path - the path to the file to read * @param {Object} [options=null] - options object * @param {String} options.username - the Blockstack ID to lookup for multi-player storage * @param {String} options.app - the app to lookup for multi-player storage - * defaults to current origin * @param {String} [options.zoneFileLookupURL=null] - The URL * to use for zonefile lookup. If falsey, this will use the * blockstack.js's getNameInfo function instead. * @returns {Promise<string>} that resolves to the URL or rejects with an error */ getFileUrl(path: string, options?: { username?: string; app?: string; zoneFileLookupURL?: string; }): Promise<string>; /** * List the set of files in this application's Gaia storage bucket. * @param {function} callback - a callback to invoke on each named file that * returns `true` to continue the listing operation or `false` to end it * @return {Promise} that resolves to the number of files listed */ listFiles(callback: (name: string) => boolean): Promise<number>; /** * Deletes the specified file from the app's data store. Currently not implemented. * @param {String} path - the path to the file to delete * @returns {Promise} that resolves when the file has been removed * or rejects with an error */ deleteFile(path: string): void; getOrSetLocalGaiaHubConnection(): Promise<GaiaHubConfig>; /** * These two functions are app-specific connections to gaia hub, * they read the user data object for information on setting up * a hub connection, and store the hub config to localstorage * @private * @returns {Promise} that resolves to the new gaia hub connection */ setLocalGaiaHubConnection(): Promise<GaiaHubConfig>; }