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4 Commits

Author SHA1 Message Date
fiatjaf
1b5c314436 nip-01 update: everything as arrays on filters. 2022-01-01 20:49:05 -03:00
fiatjaf
2230f32d11 use randomBytes from @noble/hashes. 2022-01-01 14:59:12 -03:00
fiatjaf
b271d6c06b fix .kind filter validator. 2022-01-01 10:26:55 -03:00
fiatjaf
76624a0f23 validateEvent() function. 2022-01-01 10:04:36 -03:00
6 changed files with 41 additions and 21 deletions

View File

@@ -18,7 +18,7 @@ export function serializeEvent(evt) {
evt.pubkey, evt.pubkey,
evt.created_at, evt.created_at,
evt.kind, evt.kind,
evt.tags || [], evt.tags,
evt.content evt.content
]) ])
} }
@@ -30,8 +30,24 @@ export function getEventHash(event) {
return Buffer.from(eventHash).toString('hex') return Buffer.from(eventHash).toString('hex')
} }
export function verifySignature(event) { export function validateEvent(event) {
if (event.id !== getEventHash(event)) return false if (event.id !== getEventHash(event)) return false
if (typeof event.content !== 'string') return false
if (typeof event.created_at !== 'number') return false
if (!Array.isArray(event.tags)) return false
for (let i = 0; i < event.tags.length; i++) {
let tag = event.tags[i]
if (!Array.isArray(tag)) return false
for (let j = 0; j < tag.length; j++) {
if (typeof tag[j] === 'object') return false
}
}
return true
}
export function verifySignature(event) {
return secp256k1.schnorr.verify(event.sig, event.id, event.pubkey) return secp256k1.schnorr.verify(event.sig, event.id, event.pubkey)
} }

View File

@@ -1,20 +1,21 @@
export function matchFilter(filter, event) { export function matchFilter(filter, event) {
if (filter.id && event.id !== filter.id) return false if (filter.ids && filter.ids.indexOf(event.id) !== -1) return false
if (filter.kind && event.kind !== filter.kind) return false if (filter.kinds && filter.kinds.indexOf(event.kind) !== -1) return false
if (filter.author && event.pubkey !== filter.author) return false
if (filter.authors && filter.authors.indexOf(event.pubkey) === -1) if (filter.authors && filter.authors.indexOf(event.pubkey) === -1)
return false return false
for (let f in filter) {
if (f[0] === '#') {
if ( if (
filter['#e'] && filter[f] &&
!event.tags.find(([t, v]) => t === 'e' && v === filter['#e']) !event.tags.find(([t, v]) => t === f.slice(1) && v === filter[f])
) )
return false return false
if ( }
filter['#p'] && }
!event.tags.find(([t, v]) => t === 'p' && v === filter['#p'])
) if (filter.since && event.created_at < filter.since) return false
return false if (filter.until && event.created_at >= filter.until) return false
if (filter.since && event.created_at <= filter.since) return false
return true return true
} }

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@@ -4,6 +4,7 @@ import {relayPool} from './pool'
import { import {
getBlankEvent, getBlankEvent,
signEvent, signEvent,
validateEvent,
verifySignature, verifySignature,
serializeEvent, serializeEvent,
getEventHash getEventHash
@@ -15,6 +16,7 @@ export {
relayConnect, relayConnect,
relayPool, relayPool,
signEvent, signEvent,
validateEvent,
verifySignature, verifySignature,
serializeEvent, serializeEvent,
getEventHash, getEventHash,

View File

@@ -1,6 +1,6 @@
import aes from 'browserify-cipher' import aes from 'browserify-cipher'
import {Buffer} from 'buffer' import {Buffer} from 'buffer'
import randomBytes from 'randombytes' import {randomBytes} from '@noble/hashes/utils'
import * as secp256k1 from '@noble/secp256k1' import * as secp256k1 from '@noble/secp256k1'
export function encrypt(privkey, pubkey, text) { export function encrypt(privkey, pubkey, text) {

View File

@@ -1,12 +1,13 @@
{ {
"name": "nostr-tools", "name": "nostr-tools",
"version": "0.14.3", "version": "0.16.0",
"description": "Tools for making a Nostr client.", "description": "Tools for making a Nostr client.",
"repository": { "repository": {
"type": "git", "type": "git",
"url": "https://github.com/fiatjaf/nostr-tools.git" "url": "https://github.com/fiatjaf/nostr-tools.git"
}, },
"dependencies": { "dependencies": {
"@noble/hashes": "^0.5.7",
"@noble/secp256k1": "^1.3.0", "@noble/secp256k1": "^1.3.0",
"browserify-cipher": ">=1", "browserify-cipher": ">=1",
"buffer": ">=5", "buffer": ">=5",
@@ -14,7 +15,6 @@
"dns-packet": "^5.2.4", "dns-packet": "^5.2.4",
"micro-bip32": "^0.1.0", "micro-bip32": "^0.1.0",
"micro-bip39": "^0.1.3", "micro-bip39": "^0.1.3",
"randombytes": ">=2",
"websocket-polyfill": "^0.0.3" "websocket-polyfill": "^0.0.3"
}, },
"keywords": [ "keywords": [

View File

@@ -2,7 +2,7 @@
import 'websocket-polyfill' import 'websocket-polyfill'
import {verifySignature} from './event' import {verifySignature, validateEvent} from './event'
import {matchFilters} from './filter' import {matchFilters} from './filter'
export function normalizeRelayURL(url) { export function normalizeRelayURL(url) {
@@ -93,7 +93,8 @@ export function relayConnect(url, onNotice = () => {}, onError = () => {}) {
let event = data[2] let event = data[2]
if ( if (
(await verifySignature(event)) && validateEvent(event) &&
verifySignature(event) &&
channels[channel] && channels[channel] &&
matchFilters(openSubs[channel], event) matchFilters(openSubs[channel], event)
) { ) {