guard against some nonexisting arrays of event listeners.

fixes https://github.com/fiatjaf/nostr-tools/issues/59

event.ts

@@ -64,6 +64,6 @@ export function verifySignature(
 
 export async function signEvent(event: Event, key: string): Promise<string> {
   return secp256k1.utils.bytesToHex(
-    await secp256k1.schnorr.sign(event.id || getEventHash(event), key)
+    await secp256k1.schnorr.sign(getEventHash(event), key)
   )
 }

filter.ts

@@ -6,6 +6,7 @@ export type Filter = {
   authors?: string[]
   since?: number
   until?: number
+  limit?: number
   [key: `#${string}`]: string[]
 }
 

nip05.ts

@@ -1,6 +1,10 @@
 import {ProfilePointer} from './nip19'
 
-var _fetch = fetch
+var _fetch: any
+
+try {
+  _fetch = fetch
+} catch {}
 
 export function useFetchImplementation(fetchImplementation: any) {
   _fetch = fetchImplementation
@@ -32,6 +36,8 @@ export async function queryProfile(
     name = '_'
   }
 
+  if (!name.match(/^[a-z0-9-_]+$/)) return null
+
   let res = await (
     await _fetch(`https://${domain}/.well-known/nostr.json?name=${name}`)
   ).json()

nip06.ts

@@ -7,17 +7,13 @@ import {
 } from '@scure/bip39'
 import {HDKey} from '@scure/bip32'
 
-export function privateKeyFromSeed(seed: string): string {
+export function privateKeyFromSeedWords(mnemonic: string): string {
-  let root = HDKey.fromMasterSeed(secp256k1.utils.hexToBytes(seed))
+  let root = HDKey.fromMasterSeed(mnemonicToSeedSync(mnemonic))
   let privateKey = root.derive(`m/44'/1237'/0'/0/0`).privateKey
   if (!privateKey) throw new Error('could not derive private key')
   return secp256k1.utils.bytesToHex(privateKey)
 }
 
-export function seedFromWords(mnemonic: string): string {
-  return secp256k1.utils.bytesToHex(mnemonicToSeedSync(mnemonic))
-}
-
 export function generateSeedWords(): string {
   return generateMnemonic(wordlist)
 }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "nostr-tools",
-  "version": "1.0.0-rc1",
+  "version": "1.0.0-rc2",
   "description": "Tools for making a Nostr client.",
   "repository": {
     "type": "git",

relay.ts

@@ -98,13 +98,13 @@ export function relayInit(url: string): Relay {
                 matchFilters(openSubs[id].filters, event)
               ) {
                 openSubs[id]
-                subListeners[id]?.event.forEach(cb => cb(event))
+                ;(subListeners[id]?.event || []).forEach(cb => cb(event))
               }
               return
             case 'EOSE': {
               if (data.length !== 2) return // ignore empty or malformed EOSE
               let id = data[1]
-              subListeners[id]?.eose.forEach(cb => cb())
+              ;(subListeners[id]?.eose || []).forEach(cb => cb())
               return
             }
             case 'OK': {
@@ -174,8 +174,9 @@ export function relayInit(url: string): Relay {
         subListeners[subid][type].push(cb)
       },
       off: (type: 'event' | 'eose', cb: any): void => {
-        let idx = subListeners[subid][type].indexOf(cb)
+        let listeners = subListeners[subid]
-        if (idx >= 0) subListeners[subid][type].splice(idx, 1)
+        let idx = listeners[type].indexOf(cb)
+        if (idx >= 0) listeners[type].splice(idx, 1)
       }
     }
   }
@@ -221,14 +222,14 @@ export function relayInit(url: string): Relay {
           id: `monitor-${id.slice(0, 5)}`
         })
         let willUnsub = setTimeout(() => {
-          pubListeners[id].failed.forEach(cb =>
+          ;(pubListeners[id]?.failed || []).forEach(cb =>
             cb('event not seen after 5 seconds')
           )
           monitor.unsub()
         }, 5000)
         monitor.on('event', () => {
           clearTimeout(willUnsub)
-          pubListeners[id].seen.forEach(cb => cb())
+          ;(pubListeners[id]?.seen || []).forEach(cb => cb())
         })
       }
 
@@ -247,8 +248,10 @@ export function relayInit(url: string): Relay {
           }
         },
         off: (type: 'ok' | 'seen' | 'failed', cb: any) => {
-          let idx = pubListeners[id][type].indexOf(cb)
+          let listeners = pubListeners[id]
-          if (idx >= 0) pubListeners[id][type].splice(idx, 1)
+          if (!listeners) return
+          let idx = listeners[type].indexOf(cb)
+          if (idx >= 0) listeners[type].splice(idx, 1)
         }
       }
     },