fix nip19: relays TLV items are optional.

fixes https://github.com/nbd-wtf/nostr-tools/issues/130

README.md

@@ -140,16 +140,14 @@ let relays = ['wss://relay.example.com', 'wss://relay.example2.com']
 
 let relay = await pool.ensureRelay('wss://relay.example3.com')
 
-let subs = pool.sub([...relays, relay], {
+let sub = pool.sub([...relays, relay], [{
   authors: ['32e1827635450ebb3c5a7d12c1f8e7b2b514439ac10a67eef3d9fd9c5c68e245']
-})
+}])
 
-subs.forEach(sub =>
-  sub.on('event', event => {
-    // this will only be called once the first time the event is received
-    // ...
-  })
-)
+sub.on('event', event => {
+  // this will only be called once the first time the event is received
+  // ...
+})
 
 let pubs = pool.publish(relays, newEvent)
 pubs.forEach(pub =>

nip19.test.js

@@ -56,3 +56,15 @@ test('encode and decode naddr', () => {
   expect(data.kind).toEqual(30023)
   expect(data.identifier).toEqual('banana')
 })
+
+test('encode and decode naddr from habla.news', () => {
+  let {type, data} = nip19.decode(
+    'naddr1qq98yetxv4ex2mnrv4esygrl54h466tz4v0re4pyuavvxqptsejl0vxcmnhfl60z3rth2xkpjspsgqqqw4rsf34vl5'
+  )
+  expect(type).toEqual('naddr')
+  expect(data.pubkey).toEqual(
+    '7fa56f5d6962ab1e3cd424e758c3002b8665f7b0d8dcee9fe9e288d7751ac194'
+  )
+  expect(data.kind).toEqual(30023)
+  expect(data.identifier).toEqual('references')
+})

nip19.ts

@@ -39,7 +39,7 @@ export function decode(nip19: string): {
         type: 'nprofile',
         data: {
           pubkey: secp256k1.utils.bytesToHex(tlv[0][0]),
-          relays: tlv[1].map(d => utf8Decoder.decode(d))
+          relays: tlv[1] ? tlv[1].map(d => utf8Decoder.decode(d)) : []
         }
       }
     }
@@ -52,7 +52,7 @@ export function decode(nip19: string): {
         type: 'nevent',
         data: {
           id: secp256k1.utils.bytesToHex(tlv[0][0]),
-          relays: tlv[1].map(d => utf8Decoder.decode(d))
+          relays: tlv[1] ? tlv[1].map(d => utf8Decoder.decode(d)) : []
         }
       }
     }
@@ -71,7 +71,7 @@ export function decode(nip19: string): {
           identifier: utf8Decoder.decode(tlv[0][0]),
           pubkey: secp256k1.utils.bytesToHex(tlv[2][0]),
           kind: parseInt(secp256k1.utils.bytesToHex(tlv[3][0]), 16),
-          relays: tlv[1].map(d => utf8Decoder.decode(d))
+          relays: tlv[1] ? tlv[1].map(d => utf8Decoder.decode(d)) : []
         }
       }
     }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "nostr-tools",
-  "version": "1.6.0",
+  "version": "1.6.1",
   "description": "Tools for making a Nostr client.",
   "repository": {
     "type": "git",

pool.ts

@@ -13,10 +13,10 @@ export class SimplePool {
   }
 
   close(relays: string[]): void {
-      relays.map(url => {
-        let relay = this._conn[normalizeURL(url)]
-        if (relay) relay.close()
-      })
+    relays.forEach(url => {
+      let relay = this._conn[normalizeURL(url)]
+      if (relay) relay.close()
+    })
   }
 
   async ensureRelay(url: string): Promise<Relay> {
@@ -54,7 +54,13 @@ export class SimplePool {
     }, 2400)
 
     relays.forEach(async relay => {
-      let r = await this.ensureRelay(relay)
+      let r
+      try {
+        r = await this.ensureRelay(relay)
+      } catch (err) {
+        handleEose()
+        return
+      }
       if (!r) return
       let s = r.sub(filters, modifiedOpts)
       s.on('event', (event: Event) => {
@@ -63,14 +69,17 @@ export class SimplePool {
       })
       s.on('eose', () => {
         if (eoseSent) return
+        handleEose()
+      })
+      subs.push(s)
 
+      function handleEose() {
         eosesMissing--
         if (eosesMissing === 0) {
           clearTimeout(eoseTimeout)
           for (let cb of eoseListeners.values()) cb()
         }
-      })
-      subs.push(s)
+      }
     })
 
     let greaterSub: Sub = {

relay.ts

@@ -163,14 +163,20 @@ export function relayInit(url: string): Relay {
     })
   }
 
+  function connected() {
+    return ws?.readyState === 1
+  }
+
   async function connect(): Promise<void> {
-    if (ws?.readyState && ws.readyState === 1) return // ws already open
+    if (connected()) return // ws already open
     await connectRelay()
   }
 
   async function trySend(params: [string, ...any]) {
     let msg = JSON.stringify(params)
-
+    if (!connected()) {
+      return
+    }
     try {
       ws.send(msg)
     } catch (err) {
@@ -294,8 +300,7 @@ export function relayInit(url: string): Relay {
       subListeners = {}
       pubListeners = {}
 
-      if (ws.readyState > 1) return
-      ws.close()
+      ws?.close()
     },
     get status() {
       return ws?.readyState ?? 3