Compare commits

...

14 Commits

Author SHA1 Message Date
fiatjaf
1f1a6380f0 fix getPublicKey to return the bip340 key. 2022-01-01 10:03:36 -03:00
fiatjaf
a46568d55c fix argument to micro-bip32 2021-12-31 23:09:43 -03:00
fiatjaf
ff4e63ecdf fix param order for verifySignature. 2021-12-31 22:53:27 -03:00
fiatjaf
01dd5b7a3c bring back @noble/secp256k1 along with micro-bip32. 2021-12-31 22:47:45 -03:00
fiatjaf
16536340e5 small fix on pool.removeRelay() 2021-12-31 22:25:33 -03:00
fiatjaf
1037eee335 trim relay url on normalize. 2021-12-31 22:03:02 -03:00
fiatjaf
5ce1b4c9f7 only initiate subscriptions for new relays added with read:true 2021-12-31 20:50:02 -03:00
fiatjaf
7bc9083bc5 randomChoice pool policy. 2021-12-30 21:46:54 -03:00
fiatjaf
ce214ebbab small tweaks on relayConnect. 2021-12-30 15:02:05 -03:00
fiatjaf
800beb37f1 cut out the first byte of pubkeys. 2021-12-29 15:15:53 -03:00
fiatjaf
6d4916e6f7 eslint and minor fixes. 2021-12-29 14:35:28 -03:00
fiatjaf
60fc0d7940 use tiny-secp256k1, updated nip06 and other utils. 2021-12-29 14:29:43 -03:00
fiatjaf
faa308049f always add event.id 2021-12-28 20:44:35 -03:00
fiatjaf
7b0220c1b8 use browserify-cipher for aes.
it seems everybody was including this by default before, but now webpack and others are not.
2021-12-18 20:30:58 -03:00
11 changed files with 158 additions and 93 deletions

View File

@@ -1,4 +1,5 @@
{ {
"root": true,
"parserOptions": { "parserOptions": {
"ecmaVersion": 9, "ecmaVersion": 9,
"ecmaFeatures": { "ecmaFeatures": {

View File

@@ -67,4 +67,6 @@ pool.addRelay('<url>')
// will automatically subscribe to the all the events called with .sub above // will automatically subscribe to the all the events called with .sub above
``` ```
All functions expect bytearrays as hex strings and output bytearrays as hex strings.
For other utils please read the source (for now). For other utils please read the source (for now).

View File

@@ -1,8 +1,7 @@
import {Buffer} from 'buffer' import {Buffer} from 'buffer'
import createHash from 'create-hash'
import * as secp256k1 from '@noble/secp256k1' import * as secp256k1 from '@noble/secp256k1'
import {sha256} from './utils'
export function getBlankEvent() { export function getBlankEvent() {
return { return {
kind: 255, kind: 255,
@@ -24,20 +23,18 @@ export function serializeEvent(evt) {
]) ])
} }
export async function getEventHash(event) { export function getEventHash(event) {
let eventHash = await sha256(Buffer.from(serializeEvent(event))) let eventHash = createHash('sha256')
.update(Buffer.from(serializeEvent(event)))
.digest()
return Buffer.from(eventHash).toString('hex') return Buffer.from(eventHash).toString('hex')
} }
export async function verifySignature(event) { export function verifySignature(event) {
return await secp256k1.schnorr.verify( if (event.id !== getEventHash(event)) return false
event.sig, return secp256k1.schnorr.verify(event.sig, event.id, event.pubkey)
await getEventHash(event),
event.pubkey
)
} }
export async function signEvent(event, key) { export async function signEvent(event, key) {
let eventHash = await getEventHash(event) return secp256k1.schnorr.sign(getEventHash(event), key)
return await secp256k1.schnorr.sign(eventHash, key)
} }

View File

@@ -1,3 +1,4 @@
import {generatePrivateKey, getPublicKey} from './keys'
import {relayConnect} from './relay' import {relayConnect} from './relay'
import {relayPool} from './pool' import {relayPool} from './pool'
import { import {
@@ -8,17 +9,15 @@ import {
getEventHash getEventHash
} from './event' } from './event'
import {matchFilter, matchFilters} from './filter' import {matchFilter, matchFilters} from './filter'
import {makeRandom32, sha256, getPublicKey} from './utils'
export { export {
generatePrivateKey,
relayConnect, relayConnect,
relayPool, relayPool,
signEvent, signEvent,
verifySignature, verifySignature,
serializeEvent, serializeEvent,
getEventHash, getEventHash,
makeRandom32,
sha256,
getPublicKey, getPublicKey,
getBlankEvent, getBlankEvent,
matchFilter, matchFilter,

9
keys.js Normal file
View File

@@ -0,0 +1,9 @@
import * as secp256k1 from '@noble/secp256k1'
export function generatePrivateKey() {
return Buffer.from(secp256k1.utils.randomPrivateKey()).toString('hex')
}
export function getPublicKey(privateKey) {
return secp256k1.schnorr.getPublicKey(privateKey)
}

View File

@@ -1,3 +1,4 @@
import aes from 'browserify-cipher'
import {Buffer} from 'buffer' import {Buffer} from 'buffer'
import randomBytes from 'randombytes' import randomBytes from 'randombytes'
import * as secp256k1 from '@noble/secp256k1' import * as secp256k1 from '@noble/secp256k1'
@@ -7,7 +8,7 @@ export function encrypt(privkey, pubkey, text) {
const normalizedKey = getOnlyXFromFullSharedSecret(key) const normalizedKey = getOnlyXFromFullSharedSecret(key)
let iv = Uint8Array.from(randomBytes(16)) let iv = Uint8Array.from(randomBytes(16))
var cipher = crypto.createCipheriv( var cipher = aes.createCipheriv(
'aes-256-cbc', 'aes-256-cbc',
Buffer.from(normalizedKey, 'hex'), Buffer.from(normalizedKey, 'hex'),
iv iv
@@ -22,7 +23,7 @@ export function decrypt(privkey, pubkey, ciphertext, iv) {
const key = secp256k1.getSharedSecret(privkey, '02' + pubkey) const key = secp256k1.getSharedSecret(privkey, '02' + pubkey)
const normalizedKey = getOnlyXFromFullSharedSecret(key) const normalizedKey = getOnlyXFromFullSharedSecret(key)
var decipher = crypto.createDecipheriv( var decipher = aes.createDecipheriv(
'aes-256-cbc', 'aes-256-cbc',
Buffer.from(normalizedKey, 'hex'), Buffer.from(normalizedKey, 'hex'),
Buffer.from(iv, 'base64') Buffer.from(iv, 'base64')

View File

@@ -1,17 +1,26 @@
import createHmac from 'create-hmac' import {wordlist} from 'micro-bip39/wordlists/english'
import randomBytes from 'randombytes' import {
import * as bip39 from 'bip39' generateMnemonic,
mnemonicToSeedSync,
validateMnemonic
} from 'micro-bip39'
import {HDKey} from 'micro-bip32'
export function privateKeyFromSeed(seed) { export function privateKeyFromSeed(seed) {
let hmac = createHmac('sha512', Buffer.from('Nostr seed', 'utf8')) let root = HDKey.fromMasterSeed(Buffer.from(seed, 'hex'))
hmac.update(seed) return Buffer.from(root.derive(`m/44'/1237'/0'/0'`).privateKey).toString(
return hmac.digest().slice(0, 32).toString('hex') 'hex'
)
} }
export function seedFromWords(mnemonic) { export function seedFromWords(mnemonic) {
return bip39.mnemonicToSeedSync(mnemonic) return Buffer.from(mnemonicToSeedSync(mnemonic, wordlist)).toString('hex')
} }
export function generateSeedWords() { export function generateSeedWords() {
return bip39.entropyToMnemonic(randomBytes(16).toString('hex')) return generateMnemonic(wordlist)
}
export function validateWords(words) {
return validateMnemonic(words, wordlist)
} }

View File

@@ -1,6 +1,6 @@
{ {
"name": "nostr-tools", "name": "nostr-tools",
"version": "0.10.3", "version": "0.14.3",
"description": "Tools for making a Nostr client.", "description": "Tools for making a Nostr client.",
"repository": { "repository": {
"type": "git", "type": "git",
@@ -8,11 +8,13 @@
}, },
"dependencies": { "dependencies": {
"@noble/secp256k1": "^1.3.0", "@noble/secp256k1": "^1.3.0",
"bip39": "^3.0.4", "browserify-cipher": ">=1",
"buffer": "^6.0.3", "buffer": ">=5",
"create-hmac": "^1.1.7", "create-hash": "^1.2.0",
"dns-packet": "^5.2.4", "dns-packet": "^5.2.4",
"randombytes": "^2.1.0", "micro-bip32": "^0.1.0",
"micro-bip39": "^0.1.3",
"randombytes": ">=2",
"websocket-polyfill": "^0.0.3" "websocket-polyfill": "^0.0.3"
}, },
"keywords": [ "keywords": [
@@ -26,5 +28,9 @@
"censorship", "censorship",
"censorship-resistance", "censorship-resistance",
"client" "client"
] ],
"devDependencies": {
"eslint": "^8.5.0",
"eslint-plugin-babel": "^5.3.1"
}
} }

122
pool.js
View File

@@ -1,9 +1,14 @@
import {getEventHash, signEvent} from './event' import {getEventHash, signEvent} from './event'
import {relayConnect, normalizeRelayURL} from './relay' import {relayConnect, normalizeRelayURL} from './relay'
export function relayPool(globalPrivateKey) { export function relayPool() {
var globalPrivateKey
const poolPolicy = {
// setting this to a number will cause events to be published to a random
// set of relays only, instead of publishing to all relays all the time
randomChoice: null
}
const relays = {} const relays = {}
const globalSub = []
const noticeCallbacks = [] const noticeCallbacks = []
function propagateNotice(notice, relayURL) { function propagateNotice(notice, relayURL) {
@@ -28,29 +33,34 @@ export function relayPool(globalPrivateKey) {
const activeCallback = cb const activeCallback = cb
const activeFilters = filter const activeFilters = filter
activeSubscriptions[id] = { const unsub = () => {
sub: ({cb = activeCallback, filter = activeFilters}) => { Object.values(subControllers).forEach(sub => sub.unsub())
Object.entries(subControllers).map(([relayURL, sub]) => [ delete activeSubscriptions[id]
relayURL, }
sub.sub({cb, filter}, id) const sub = ({cb = activeCallback, filter = activeFilters}) => {
]) Object.entries(subControllers).map(([relayURL, sub]) => [
return activeSubscriptions[id] relayURL,
}, sub.sub({cb, filter}, id)
addRelay: relay => { ])
subControllers[relay.url] = relay.sub({cb, filter}, id) return activeSubscriptions[id]
return activeSubscriptions[id] }
}, const addRelay = relay => {
removeRelay: relayURL => { subControllers[relay.url] = relay.sub({cb, filter}, id)
if (relayURL in subControllers) { return activeSubscriptions[id]
subControllers[relayURL].unsub() }
if (Object.keys(subControllers).length === 0) unsub() const removeRelay = relayURL => {
} if (relayURL in subControllers) {
return activeSubscriptions[id] subControllers[relayURL].unsub()
}, if (Object.keys(subControllers).length === 0) unsub()
unsub: () => {
Object.values(subControllers).forEach(sub => sub.unsub())
delete activeSubscriptions[id]
} }
return activeSubscriptions[id]
}
activeSubscriptions[id] = {
sub,
unsub,
addRelay,
removeRelay
} }
return activeSubscriptions[id] return activeSubscriptions[id]
@@ -62,25 +72,32 @@ export function relayPool(globalPrivateKey) {
setPrivateKey(privateKey) { setPrivateKey(privateKey) {
globalPrivateKey = privateKey globalPrivateKey = privateKey
}, },
async addRelay(url, policy = {read: true, write: true}) { setPolicy(key, value) {
poolPolicy[key] = value
},
addRelay(url, policy = {read: true, write: true}) {
let relayURL = normalizeRelayURL(url) let relayURL = normalizeRelayURL(url)
if (relayURL in relays) return if (relayURL in relays) return
let relay = await relayConnect(url, notice => { let relay = relayConnect(url, notice => {
propagateNotice(notice, relayURL) propagateNotice(notice, relayURL)
}) })
relays[relayURL] = {relay, policy} relays[relayURL] = {relay, policy}
Object.values(activeSubscriptions).forEach(subscription => if (policy.read) {
subscription.addRelay(relay) Object.values(activeSubscriptions).forEach(subscription =>
) subscription.addRelay(relay)
)
}
return relay return relay
}, },
removeRelay(url) { removeRelay(url) {
let relayURL = normalizeRelayURL(url) let relayURL = normalizeRelayURL(url)
let {relay} = relays[relayURL] let data = relays[relayURL]
if (!relay) return if (!data) return
let {relay} = data
Object.values(activeSubscriptions).forEach(subscription => Object.values(activeSubscriptions).forEach(subscription =>
subscription.removeRelay(relay) subscription.removeRelay(relay)
) )
@@ -95,11 +112,12 @@ export function relayPool(globalPrivateKey) {
if (index !== -1) noticeCallbacks.splice(index, 1) if (index !== -1) noticeCallbacks.splice(index, 1)
}, },
async publish(event, statusCallback = (status, relayURL) => {}) { async publish(event, statusCallback = (status, relayURL) => {}) {
event.id = getEventHash(event)
if (!event.sig) { if (!event.sig) {
event.tags = event.tags || [] event.tags = event.tags || []
if (globalPrivateKey) { if (globalPrivateKey) {
event.id = await getEventHash(event)
event.sig = await signEvent(event, globalPrivateKey) event.sig = await signEvent(event, globalPrivateKey)
} else { } else {
throw new Error( throw new Error(
@@ -108,17 +126,39 @@ export function relayPool(globalPrivateKey) {
} }
} }
Object.values(relays) let writeable = Object.values(relays)
.filter(({policy}) => policy.write) .filter(({policy}) => policy.write)
.map(async ({relay}) => { .sort(() => Math.random() - 0.5) // random
try {
await relay.publish(event, status => let maxTargets = poolPolicy.randomChoice
statusCallback(status, relay.url) ? poolPolicy.randomChoice
) : writeable.length
} catch (err) {
statusCallback(-1, relay.url) let successes = 0
for (let i = 0; i < writeable.length; i++) {
let {relay} = writeable[i]
try {
await new Promise(async (resolve, reject) => {
try {
await relay.publish(event, status => {
statusCallback(status, relay.url)
resolve()
})
} catch (err) {
statusCallback(-1, relay.url)
}
})
successes++
if (successes >= maxTargets) {
break
} }
}) } catch (err) {
/***/
}
}
return event return event
} }

View File

@@ -1,17 +1,19 @@
/* global WebSocket */
import 'websocket-polyfill' import 'websocket-polyfill'
import {verifySignature} from './event' import {verifySignature} from './event'
import {matchFilters} from './filter' import {matchFilters} from './filter'
export function normalizeRelayURL(url) { export function normalizeRelayURL(url) {
let [host, ...qs] = url.split('?') let [host, ...qs] = url.trim().split('?')
if (host.slice(0, 4) === 'http') host = 'ws' + host.slice(4) if (host.slice(0, 4) === 'http') host = 'ws' + host.slice(4)
if (host.slice(0, 2) !== 'ws') host = 'wss://' + host if (host.slice(0, 2) !== 'ws') host = 'wss://' + host
if (host.length && host[host.length - 1] === '/') host = host.slice(0, -1) if (host.length && host[host.length - 1] === '/') host = host.slice(0, -1)
return [host, ...qs].join('?') return [host, ...qs].join('?')
} }
export function relayConnect(url, onNotice) { export function relayConnect(url, onNotice = () => {}, onError = () => {}) {
url = normalizeRelayURL(url) url = normalizeRelayURL(url)
var ws, resolveOpen, untilOpen, wasClosed var ws, resolveOpen, untilOpen, wasClosed
@@ -44,8 +46,9 @@ export function relayConnect(url, onNotice) {
} }
} }
} }
ws.onerror = () => { ws.onerror = err => {
console.log('error connecting to relay', url) console.log('error connecting to relay', url)
onError(err)
} }
ws.onclose = () => { ws.onclose = () => {
resetOpenState() resetOpenState()
@@ -144,22 +147,26 @@ export function relayConnect(url, onNotice) {
return { return {
url, url,
sub, sub,
async publish(event, statusCallback = status => {}) { async publish(event, statusCallback) {
try { try {
await trySend(['EVENT', event]) await trySend(['EVENT', event])
statusCallback(0) if (statusCallback) {
let {unsub} = relay.sub( statusCallback(0)
{ let {unsub} = sub(
cb: () => { {
statusCallback(1) cb: () => {
statusCallback(1)
unsub()
clearTimeout(willUnsub)
},
filter: {id: event.id}
}, },
filter: {id: event.id} `monitor-${event.id.slice(0, 5)}`
}, )
`monitor-${event.id.slice(0, 5)}` let willUnsub = setTimeout(unsub, 5000)
) }
setTimeout(unsub, 5000)
} catch (err) { } catch (err) {
statusCallback(-1) if (statusCallback) statusCallback(-1)
} }
}, },
close() { close() {

View File

@@ -1,6 +0,0 @@
import * as secp256k1 from '@noble/secp256k1'
export const makeRandom32 = () => secp256k1.utils.randomPrivateKey()
export const sha256 = m => secp256k1.utils.sha256(Uint8Array.from(m))
export const getPublicKey = privateKey =>
secp256k1.schnorr.getPublicKey(privateKey)