fix: ensure identify streams are closed (#551)

* fix: ensure identify streams are closed

* fix: call connection.addStream properly

* chore: simplify stream closure

* test: improve durability of identify push test

src/identify/index.js

@@ -4,7 +4,7 @@ const debug = require('debug')
 const pb = require('it-protocol-buffers')
 const lp = require('it-length-prefixed')
 const pipe = require('it-pipe')
-const { collect, take } = require('streaming-iterables')
+const { collect, take, consume } = require('streaming-iterables')
 
 const PeerInfo = require('peer-info')
 const PeerId = require('peer-id')
@@ -114,7 +114,8 @@ class IdentifyService {
             protocols: Array.from(this._protocols.keys())
           }],
           pb.encode(Message),
-          stream
+          stream,
+          consume
         )
       } catch (err) {
         // Just log errors
@@ -153,6 +154,7 @@ class IdentifyService {
   async identify (connection) {
     const { stream } = await connection.newStream(MULTICODEC_IDENTIFY)
     const [data] = await pipe(
+      [],
       stream,
       lp.decode(),
       take(1),
@@ -242,7 +244,8 @@ class IdentifyService {
     pipe(
       [message],
       lp.encode(),
-      stream
+      stream,
+      consume
     )
   }
 
@@ -255,6 +258,7 @@ class IdentifyService {
    */
   async _handlePush ({ connection, stream }) {
     const [data] = await pipe(
+      [],
       stream,
       lp.decode(),
       take(1),

src/upgrader.js

@@ -231,7 +231,7 @@ class Upgrader {
             const { stream, protocol } = await mss.handle(Array.from(this.protocols.keys()))
             log('%s: incoming stream opened on %s', direction, protocol)
             if (this.metrics) this.metrics.trackStream({ stream, remotePeer, protocol })
-            connection.addStream(stream, protocol)
+            connection.addStream(muxedStream, { protocol })
             this._onStream({ connection, stream, protocol })
           } catch (err) {
             log.error(err)

test/identify/index.spec.js

@@ -12,6 +12,7 @@ const PeerId = require('peer-id')
 const PeerInfo = require('peer-info')
 const duplexPair = require('it-pair/duplex')
 const multiaddr = require('multiaddr')
+const pWaitFor = require('p-wait-for')
 
 const { codes: Errors } = require('../../src/errors')
 const { IdentifyService, multicodecs } = require('../../src/identify')
@@ -203,16 +204,17 @@ describe('Identify', () => {
       })
 
       sinon.spy(libp2p.identifyService, 'identify')
-      sinon.spy(libp2p.peerStore, 'replace')
+      const peerStoreSpy = sinon.spy(libp2p.peerStore, 'replace')
 
       const connection = await libp2p.dialer.connectToPeer(remoteAddr)
       expect(connection).to.exist()
-      // Wait for nextTick to trigger the identify call
-      await delay(1)
+
+      // Wait for peer store to be updated
+      await pWaitFor(() => peerStoreSpy.callCount === 1)
       expect(libp2p.identifyService.identify.callCount).to.equal(1)
-      await libp2p.identifyService.identify.firstCall.returnValue
 
-      expect(libp2p.peerStore.replace.callCount).to.equal(1)
+      // The connection should have no open streams
+      expect(connection.streams).to.have.length(0)
       await connection.close()
     })
 
@@ -247,6 +249,9 @@ describe('Identify', () => {
         const results = await call.returnValue
         expect(results.length).to.equal(1)
       }
+
+      // Verify the streams close
+      await pWaitFor(() => connection.streams.length === 0)
     })
   })
 })