feat: add identity and feed management (#272)

* feat(wip): add basic feed operations * ci: bump checks * ci: bump checks * feat: rework stamps and add feed functionalities * refactor: polish and fixes * feat(wip): add formulas * feat: show bzz.link for websites * feat: add stamp empty states and formatBzz * feat: add feed download * chore: update manifest-js version * feat: dev mode support with bee-js 3.1.0 (#273) * feat: dev mode support with bee-js 3.1.0 * fix: added missing package-lock.json file * build: remove PR preview * style: work on design * feat: add TroubleshootConnectionCard * build: remove depcheck Co-authored-by: Attila Gazso <agazso@gmail.com>
2021-12-21 10:58:54 +01:00
parent d7c59a1495
commit 25b65c3fb7
46 changed files with 4354 additions and 6378 deletions
@@ -0,0 +1,110 @@
+import { Bee, Reference } from '@ethersphere/bee-js'
+import Wallet from 'ethereumjs-wallet'
+import { uuidV4 } from '.'
+import { Identity, IdentityType } from '../providers/Feeds'
+
+export function generateWallet(): Wallet {
+  const buffer = new Uint8Array(32)
+  crypto.getRandomValues(buffer)
+  const wallet = new Wallet(Buffer.from(buffer))
+
+  return wallet
+}
+
+export function persistIdentity(identities: Identity[], identity: Identity): void {
+  const existingIndex = identities.findIndex(x => x.uuid === identity.uuid)
+
+  if (existingIndex !== -1) {
+    identities.splice(existingIndex, 1)
+  }
+  identities.unshift(identity)
+  localStorage.setItem('feeds', JSON.stringify(identities))
+}
+
+export function persistIdentitiesWithoutUpdate(identities: Identity[]): void {
+  localStorage.setItem('feeds', JSON.stringify(identities))
+}
+
+export async function convertWalletToIdentity(
+  identity: Wallet,
+  type: IdentityType,
+  name: string,
+  password?: string,
+): Promise<Identity> {
+  if (type === 'V3' && !password) {
+    throw Error('V3 passwords require password')
+  }
+
+  const identityString =
+    type === 'PRIVATE_KEY' ? identity.getPrivateKeyString() : await identity.toV3String(password as string)
+
+  return {
+    uuid: uuidV4(),
+    name,
+    type: password ? 'V3' : 'PRIVATE_KEY',
+    address: identity.getAddressString(),
+    identity: identityString,
+  }
+}
+
+export async function importIdentity(name: string, data: string): Promise<Identity | null> {
+  if (data.length === 64) {
+    const wallet = await getWallet('PRIVATE_KEY', data)
+
+    return {
+      uuid: uuidV4(),
+      name,
+      type: 'PRIVATE_KEY',
+      identity: data,
+      address: wallet.getAddressString(),
+    }
+  }
+
+  if (data.length === 66 && data.toLowerCase().startsWith('0x')) {
+    const wallet = await getWallet('PRIVATE_KEY', data.slice(2))
+
+    return { uuid: uuidV4(), name, type: 'PRIVATE_KEY', identity: data, address: wallet.getAddressString() }
+  }
+  try {
+    const { address } = JSON.parse(data)
+
+    return { uuid: uuidV4(), name, type: 'V3', identity: data, address }
+  } catch {
+    return null
+  }
+}
+
+function getWalletFromIdentity(identity: Identity, password?: string): Promise<Wallet> {
+  return getWallet(identity.type, identity.identity, password)
+}
+
+async function getWallet(type: IdentityType, data: string, password?: string): Promise<Wallet> {
+  return type === 'PRIVATE_KEY'
+    ? Wallet.fromPrivateKey(Buffer.from(trimHexString(data), 'hex'))
+    : await Wallet.fromV3(data, password as string)
+}
+
+export async function updateFeed(
+  beeApi: Bee,
+  identity: Identity,
+  hash: string,
+  stamp: string,
+  password?: string,
+): Promise<void> {
+  const wallet = await getWalletFromIdentity(identity, password)
+
+  if (!identity.feedHash) {
+    identity.feedHash = await beeApi.createFeedManifest(stamp, 'sequence', '00'.repeat(32), wallet.getAddressString())
+  }
+
+  const writer = beeApi.makeFeedWriter('sequence', '00'.repeat(32), wallet.getPrivateKeyString())
+  await writer.upload(stamp, hash as Reference)
+}
+
+function trimHexString(string: string): string {
+  if (string.toLowerCase().startsWith('0x')) {
+    return string.slice(2)
+  }
+
+  return string
+}