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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 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | import * as queryString from 'query-string' import { decodeToken } from 'jsontokens' import { BLOCKSTACK_HANDLER, getGlobalObject, updateQueryStringParameter } from '../utils' import { fetchPrivate } from '../fetchUtil' import { Logger } from '../logger' /** * Retrieves the authentication request from the query string * @return {String|null} the authentication request or `null` if * the query string parameter `authRequest` is not found * @private * @ignore */ export function getAuthRequestFromURL() { const location = getGlobalObject('location', { throwIfUnavailable: true, usageDesc: 'getAuthRequestFromURL' }) const queryDict = queryString.parse(location.search) if (queryDict.authRequest) { return (<string>queryDict.authRequest).split(`${BLOCKSTACK_HANDLER}:`).join('') } else { return null } } /** * Fetches the contents of the manifest file specified in the authentication request * * @param {String} authRequest encoded and signed authentication request * @return {Promise<Object|String>} Returns a `Promise` that resolves to the JSON * object manifest file unless there's an error in which case rejects with an error * message. * @private * @ignore */ export async function fetchAppManifest(authRequest: string): Promise<any> { Iif (!authRequest) { throw new Error('Invalid auth request') } const payload = decodeToken(authRequest).payload Iif (typeof payload === 'string') { throw new Error('Unexpected token payload type of string') } const manifestURI = payload.manifest_uri as string try { Logger.debug(`Fetching manifest from ${manifestURI}`) const response = await fetchPrivate(manifestURI) const responseText = await response.text() const responseJSON = JSON.parse(responseText) return { ...responseJSON, manifestURI } } catch (error) { console.log(error) throw new Error('Could not fetch manifest.json') } } /** * Redirect the user's browser to the app using the `redirect_uri` * specified in the authentication request, passing the authentication * response token as a query parameter. * * @param {String} authRequest encoded and signed authentication request token * @param {String} authResponse encoded and signed authentication response token * @return {void} * @throws {Error} if there is no redirect uri * @private * @ignore */ export function redirectUserToApp(authRequest: string, authResponse: string) { const payload = decodeToken(authRequest).payload if (typeof payload === 'string') { throw new Error('Unexpected token payload type of string') } let redirectURI = payload.redirect_uri as string Logger.debug(redirectURI) if (redirectURI) { redirectURI = updateQueryStringParameter(redirectURI, 'authResponse', authResponse) } else { throw new Error('Invalid redirect URI') } const location = getGlobalObject('location', { throwIfUnavailable: true, usageDesc: 'redirectUserToApp' }) location.href = redirectURI } |