blockstack

<!doctype html> <html lang="en"> <head> <title>Code coverage report for src/storage/hub.js</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/storage</a> hub.js </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 62.3% Statements 38/61 </div> <div class='fl pad1y space-right2'> 39.13% Branches 9/23 </div> <div class='fl pad1y space-right2'> 82.35% Functions 14/17 </div> <div class='fl pad1y space-right2'> 62.3% Lines 38/61 </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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lang-js">/* @flow */ import bitcoin from 'bitcoinjs-lib' import crypto from 'crypto'   import { TokenSigner } from 'jsontokens' import { ecPairToAddress } from '../utils' import { getPublicKeyFromPrivate, hexStringToECPair } from '../index' import { BLOCKSTACK_DEFAULT_GAIA_HUB_URL } from '../auth/authConstants'   import { UserSession } from '../auth/userSession' import { Logger } from '../logger' import { InvalidStateError } from '../errors'   export const BLOCKSTACK_GAIA_HUB_LABEL = 'blockstack-gaia-hub-config'   export type GaiaHubConfig = { address: string, url_prefix: string, token: string, server: string }   export function uploadToGaiaHub(filename: string, contents: any, hubConfig: GaiaHubConfig, contentType: string = 'application/octet-stream'): Promise<*> { Logger.debug(`uploadToGaiaHub: uploading ${filename} to ${hubConfig.server}`) return fetch(`${hubConfig.server}/store/${hubConfig.address}/${filename}`, { method: 'POST', headers: { 'Content-Type': contentType, Authorization: `bearer ${hubConfig.token}` }, body: contents }) .then((response) => { if (response.ok) { return response.text() } else { throw new Error('Error when uploading to Gaia hub') } }) .then(responseText => JSON.parse(responseText)) .then(responseJSON => responseJSON.publicURL) }   export function getFullReadUrl(filename: string, hubConfig: GaiaHubConfig): string { return `${hubConfig.url_prefix}${hubConfig.address}/${filename}` }   function makeLegacyAuthToken(challengeText: string, signerKeyHex: string): string { // only sign specific legacy auth challenges. let parsedChallenge try { parsedChallenge = JSON.parse(challengeText) } catch (err) { throw new Error('Failed in parsing legacy challenge text from the gaia hub.') } if (parsedChallenge[0] === 'gaiahub' && parsedChallenge[3] === 'blockstack_storage_please_sign') { const signer = hexStringToECPair(signerKeyHex + (signerKeyHex.length === 64 ? '01' : '')) const digest = bitcoin.crypto.sha256(challengeText) const signature = signer.sign(digest).toDER().toString('hex') const publickey = getPublicKeyFromPrivate(signerKeyHex) const token = Buffer.from(JSON.stringify( { publickey, signature } )).toString('base64') return token } else { throw new Error('Failed to connect to legacy gaia hub. If you operate this hub, please update.') } }   function makeV1GaiaAuthToken(hubInfo: Object, signerKeyHex: string, hubUrl: string, associationToken?: string): string { const challengeText = hubInfo.challenge_text const handlesV1Auth = (hubInfo.latest_auth_version && parseInt(hubInfo.latest_auth_version.slice(1), 10) >= 1) const iss = getPublicKeyFromPrivate(signerKeyHex)   Iif (!handlesV1Auth) { return makeLegacyAuthToken(challengeText, signerKeyHex) }   const salt = crypto.randomBytes(16).toString('hex') const payload = { gaiaChallenge: challengeText, hubUrl, iss, salt, associationToken } const token = new TokenSigner('ES256K', signerKeyHex).sign(payload) return `v1:${token}` }   export function connectToGaiaHub(gaiaHubUrl: string, challengeSignerHex: string, associationToken?: string): Promise<GaiaHubConfig> { Logger.debug(`connectToGaiaHub: ${gaiaHubUrl}/hub_info`)   return fetch(`${gaiaHubUrl}/hub_info`) .then(response => response.json()) .then((hubInfo) => { const readURL = hubInfo.read_url_prefix const token = makeV1GaiaAuthToken(hubInfo, challengeSignerHex, gaiaHubUrl, associationToken) const address = ecPairToAddress(hexStringToECPair(challengeSignerHex + (challengeSignerHex.length === 64 ? '01' : ''))) return { url_prefix: readURL, address, token, server: gaiaHubUrl } }) }   /** * 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 * @param {UserSession} caller - the instance calling this function * @private * @returns {Promise} that resolves to the new gaia hub connection */ export function setLocalGaiaHubConnection(caller: UserSession): Promise<GaiaHubConfig> { const userData = caller.loadUserData()   if (!userData) { throw new InvalidStateError('Missing userData') }   if (!userData.hubUrl) { userData.hubUrl = BLOCKSTACK_DEFAULT_GAIA_HUB_URL }   return connectToGaiaHub(userData.hubUrl, userData.appPrivateKey, userData.associationToken) .then((gaiaConfig) => { userData.gaiaHubConfig = gaiaConfig return gaiaConfig }) }   export function getOrSetLocalGaiaHubConnection(caller: UserSession): Promise<GaiaHubConfig> { const userData = caller.store.getSessionData().userData Iif (!userData) { throw new InvalidStateError('Missing userData') } const hubConfig = userData.gaiaHubConfig Eif (hubConfig) { return Promise.resolve(hubConfig) } return setLocalGaiaHubConnection(caller) }   export function getBucketUrl(gaiaHubUrl: string, appPrivateKey: string): Promise<string> { let challengeSigner try { challengeSigner = bitcoin.ECPair.fromPrivateKey(new Buffer(appPrivateKey, 'hex')) } catch (e) { return Promise.reject(e) }   return fetch(`${gaiaHubUrl}/hub_info`) .then(response => response.text()) .then(responseText => JSON.parse(responseText)) .then((responseJSON) => { const readURL = responseJSON.read_url_prefix const address = ecPairToAddress(challengeSigner) const bucketUrl = `${readURL}${address}/` return bucketUrl }) }  </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 Mar 11 2019 16:28:28 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>