exchange signed routing records in identify (#747)

*  Exchange signed routing records in identify


Co-authored-by: Aarsh Shah <aarshkshah1992@gmail.com>
This commit is contained in:
Yusef Napora
2020-04-30 01:36:31 -04:00
committed by GitHub
parent c833e2c9fc
commit 077a81814f
8 changed files with 551 additions and 152 deletions

View File

@@ -5,21 +5,24 @@ import (
"context"
"io"
"reflect"
"sort"
"sync"
"testing"
"time"
"github.com/libp2p/go-eventbus"
"github.com/libp2p/go-libp2p-core/event"
"github.com/libp2p/go-libp2p-core/helpers"
"github.com/libp2p/go-libp2p-core/host"
"github.com/libp2p/go-libp2p-core/network"
"github.com/libp2p/go-libp2p-core/peer"
"github.com/libp2p/go-libp2p-core/peerstore"
"github.com/libp2p/go-libp2p-core/protocol"
"github.com/libp2p/go-libp2p-core/record"
"github.com/libp2p/go-libp2p-core/test"
"github.com/libp2p/go-eventbus"
swarmt "github.com/libp2p/go-libp2p-swarm/testing"
"github.com/libp2p/go-libp2p/p2p/protocol/identify"
ma "github.com/multiformats/go-multiaddr"
madns "github.com/multiformats/go-multiaddr-dns"
"github.com/stretchr/testify/require"
@@ -102,16 +105,35 @@ func TestProtocolHandlerEvents(t *testing.T) {
}
defer sub.Close()
assert := func(added, removed []protocol.ID) {
var next event.EvtLocalProtocolsUpdated
select {
case evt := <-sub.Out():
next = evt.(event.EvtLocalProtocolsUpdated)
break
case <-time.After(5 * time.Second):
t.Fatal("event not received in 5 seconds")
// the identify service adds new protocol handlers shortly after the host
// starts. this helps us filter those events out, since they're unrelated
// to the test.
isIdentify := func(evt event.EvtLocalProtocolsUpdated) bool {
for _, p := range evt.Added {
if p == identify.ID || p == identify.IDPush {
return true
}
}
return false
}
nextEvent := func() event.EvtLocalProtocolsUpdated {
for {
select {
case evt := <-sub.Out():
next := evt.(event.EvtLocalProtocolsUpdated)
if isIdentify(next) {
continue
}
return next
case <-time.After(5 * time.Second):
t.Fatal("event not received in 5 seconds")
}
}
}
assert := func(added, removed []protocol.ID) {
next := nextEvent()
if !reflect.DeepEqual(added, next.Added) {
t.Errorf("expected added: %v; received: %v", added, next.Added)
}
@@ -460,11 +482,10 @@ func TestAddrResolution(t *testing.T) {
_ = h.Connect(tctx, *pi)
addrs := h.Peerstore().Addrs(pi.ID)
sort.Sort(sortedMultiaddrs(addrs))
if len(addrs) != 2 || !addrs[0].Equal(addr1) || !addrs[1].Equal(addr2) {
t.Fatalf("expected [%s %s], got %+v", addr1, addr2, addrs)
}
require.Len(t, addrs, 2)
require.Contains(t, addrs, addr1)
require.Contains(t, addrs, addr2)
}
func TestAddrResolutionRecursive(t *testing.T) {
@@ -515,11 +536,9 @@ func TestAddrResolutionRecursive(t *testing.T) {
_ = h.Connect(tctx, *pi1)
addrs1 := h.Peerstore().Addrs(pi1.ID)
sort.Sort(sortedMultiaddrs(addrs1))
if len(addrs1) != 2 || !addrs1[0].Equal(addr1) || !addrs1[1].Equal(addr2) {
t.Fatalf("expected [%s %s], got %+v", addr1, addr2, addrs1)
}
require.Len(t, addrs1, 2)
require.Contains(t, addrs1, addr1)
require.Contains(t, addrs1, addr2)
pi2, err := peer.AddrInfoFromP2pAddr(p2paddr2)
if err != nil {
@@ -529,11 +548,49 @@ func TestAddrResolutionRecursive(t *testing.T) {
_ = h.Connect(tctx, *pi2)
addrs2 := h.Peerstore().Addrs(pi2.ID)
sort.Sort(sortedMultiaddrs(addrs2))
require.Len(t, addrs2, 1)
require.Contains(t, addrs2, addr1)
}
if len(addrs2) != 1 || !addrs2[0].Equal(addr1) {
t.Fatalf("expected [%s], got %+v", addr1, addrs2)
func TestAddrChangeImmediatelyIfAddressNonEmpty(t *testing.T) {
ctx := context.Background()
taddrs := []ma.Multiaddr{ma.StringCast("/ip4/1.2.3.4/tcp/1234")}
h := New(swarmt.GenSwarm(t, ctx), AddrsFactory(func(addrs []ma.Multiaddr) []ma.Multiaddr {
return taddrs
}))
defer h.Close()
sub, err := h.EventBus().Subscribe(&event.EvtLocalAddressesUpdated{})
if err != nil {
t.Error(err)
}
defer sub.Close()
// wait for the host background thread to start
time.Sleep(1 * time.Second)
expected := event.EvtLocalAddressesUpdated{
Diffs: true,
Current: []event.UpdatedAddress{
{Action: event.Added, Address: ma.StringCast("/ip4/1.2.3.4/tcp/1234")},
},
Removed: []event.UpdatedAddress{}}
// assert we get expected event
evt := waitForAddrChangeEvent(ctx, sub, t)
if !updatedAddrEventsEqual(expected, evt) {
t.Errorf("change events not equal: \n\texpected: %v \n\tactual: %v", expected, evt)
}
// assert it's on the signed record
rc := peerRecordFromEnvelope(t, evt.SignedPeerRecord)
require.Equal(t, taddrs, rc.Addrs)
// assert it's in the peerstore
ev := h.Peerstore().(peerstore.CertifiedAddrBook).GetPeerRecord(h.ID())
require.NotNil(t, ev)
rc = peerRecordFromEnvelope(t, *ev)
require.Equal(t, taddrs, rc.Addrs)
}
func TestHostAddrChangeDetection(t *testing.T) {
@@ -611,9 +668,18 @@ func TestHostAddrChangeDetection(t *testing.T) {
h.SignalAddressChange()
evt := waitForAddrChangeEvent(ctx, sub, t)
if !updatedAddrEventsEqual(expectedEvents[i-1], evt) {
t.Errorf("change events not equal: \n\texpected: %v \n\tactual: %v", expectedEvents[i], evt)
t.Errorf("change events not equal: \n\texpected: %v \n\tactual: %v", expectedEvents[i-1], evt)
}
// assert it's on the signed record
rc := peerRecordFromEnvelope(t, evt.SignedPeerRecord)
require.Equal(t, addrSets[i], rc.Addrs)
// assert it's in the peerstore
ev := h.Peerstore().(peerstore.CertifiedAddrBook).GetPeerRecord(h.ID())
require.NotNil(t, ev)
rc = peerRecordFromEnvelope(t, *ev)
require.Equal(t, addrSets[i], rc.Addrs)
}
}
@@ -672,10 +738,17 @@ func updatedAddrEventsEqual(a, b event.EvtLocalAddressesUpdated) bool {
updatedAddrsEqual(a.Removed, b.Removed)
}
type sortedMultiaddrs []ma.Multiaddr
func (sma sortedMultiaddrs) Len() int { return len(sma) }
func (sma sortedMultiaddrs) Swap(i, j int) { sma[i], sma[j] = sma[j], sma[i] }
func (sma sortedMultiaddrs) Less(i, j int) bool {
return bytes.Compare(sma[i].Bytes(), sma[j].Bytes()) == 1
func peerRecordFromEnvelope(t *testing.T, ev record.Envelope) *peer.PeerRecord {
t.Helper()
rec, err := ev.Record()
if err != nil {
t.Fatalf("error getting PeerRecord from event: %v", err)
return nil
}
peerRec, ok := rec.(*peer.PeerRecord)
if !ok {
t.Fatalf("wrong type for peer record")
return nil
}
return peerRec
}