Paul Frazee
117 lines
3.1 KiB
TypeScript
117 lines
3.1 KiB
TypeScript
import * as auth from '@adxp/auth'
|
|
import * as ucan from 'ucans'
|
|
import {
|
|
getInitialURL,
|
|
extractHashFragment,
|
|
clearHash,
|
|
} from '../../platform/urls'
|
|
import * as authFlow from '../../platform/auth-flow'
|
|
import * as storage from './storage'
|
|
|
|
const SCOPE = auth.writeCap(
|
|
'did:key:z6MkfRiFMLzCxxnw6VMrHK8pPFt4QAHS3jX3XM87y9rta6kP',
|
|
'did:example:microblog',
|
|
)
|
|
|
|
export async function isAuthed(authStore: ReactNativeStore) {
|
|
return await authStore.hasUcan(SCOPE)
|
|
}
|
|
|
|
export async function logout(authStore: ReactNativeStore) {
|
|
await authStore.reset()
|
|
}
|
|
|
|
export async function parseUrlForUcan(fragment: string) {
|
|
try {
|
|
return await auth.parseLobbyResponseHashFragment(fragment)
|
|
} catch (err) {
|
|
return undefined
|
|
}
|
|
}
|
|
|
|
export async function initialLoadUcanCheck(authStore: ReactNativeStore) {
|
|
let wasAuthed = false
|
|
const fragment = extractHashFragment(await getInitialURL())
|
|
if (fragment) {
|
|
const ucan = await parseUrlForUcan(fragment)
|
|
if (ucan) {
|
|
await authStore.addUcan(ucan)
|
|
wasAuthed = true
|
|
clearHash()
|
|
}
|
|
}
|
|
return wasAuthed
|
|
}
|
|
|
|
export async function requestAppUcan(authStore: ReactNativeStore) {
|
|
return authFlow.requestAppUcan(authStore, SCOPE)
|
|
}
|
|
|
|
export class ReactNativeStore extends auth.AuthStore {
|
|
private keypair: ucan.EdKeypair
|
|
private ucanStore: ucan.Store
|
|
|
|
constructor(keypair: ucan.EdKeypair, ucanStore: ucan.Store) {
|
|
super()
|
|
this.keypair = keypair
|
|
this.ucanStore = ucanStore
|
|
}
|
|
|
|
static async load(): Promise<ReactNativeStore> {
|
|
const keypair = await ReactNativeStore.loadOrCreateKeypair()
|
|
|
|
const storedUcans = await ReactNativeStore.getStoredUcanStrs()
|
|
const ucanStore = await ucan.Store.fromTokens(storedUcans)
|
|
|
|
return new ReactNativeStore(keypair, ucanStore)
|
|
}
|
|
|
|
static async loadOrCreateKeypair(): Promise<ucan.EdKeypair> {
|
|
const storedKey = await storage.loadString('adxKey')
|
|
if (storedKey) {
|
|
return ucan.EdKeypair.fromSecretKey(storedKey)
|
|
} else {
|
|
// @TODO: again just stand in since no actual root keys
|
|
const keypair = await ucan.EdKeypair.create({exportable: true})
|
|
storage.saveString('adxKey', await keypair.export())
|
|
return keypair
|
|
}
|
|
}
|
|
|
|
static async getStoredUcanStrs(): Promise<string[]> {
|
|
const storedStr = await storage.loadString('adxUcans')
|
|
if (!storedStr) {
|
|
return []
|
|
}
|
|
return storedStr.split(',')
|
|
}
|
|
|
|
static setStoredUcanStrs(ucans: string[]): void {
|
|
storage.saveString('adxUcans', ucans.join(','))
|
|
}
|
|
|
|
protected async getKeypair(): Promise<ucan.EdKeypair> {
|
|
return this.keypair
|
|
}
|
|
|
|
async addUcan(token: ucan.Chained): Promise<void> {
|
|
this.ucanStore.add(token)
|
|
const storedUcans = await ReactNativeStore.getStoredUcanStrs()
|
|
ReactNativeStore.setStoredUcanStrs([...storedUcans, token.encoded()])
|
|
}
|
|
|
|
async getUcanStore(): Promise<ucan.Store> {
|
|
return this.ucanStore
|
|
}
|
|
|
|
async clear(): Promise<void> {
|
|
storage.clear()
|
|
}
|
|
|
|
async reset(): Promise<void> {
|
|
this.clear()
|
|
this.keypair = await ReactNativeStore.loadOrCreateKeypair()
|
|
this.ucanStore = await ucan.Store.fromTokens([])
|
|
}
|
|
}
|