ceremonyclient/go-libp2p/p2p/host/basic/basic_host_test.go
2023-08-20 23:07:43 -05:00

897 lines
25 KiB
Go

package basichost
import (
"context"
"fmt"
"io"
"reflect"
"sort"
"strings"
"sync"
"testing"
"time"
"github.com/libp2p/go-libp2p/core/event"
"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/p2p/host/autonat"
"github.com/libp2p/go-libp2p/p2p/host/eventbus"
swarmt "github.com/libp2p/go-libp2p/p2p/net/swarm/testing"
"github.com/libp2p/go-libp2p/p2p/protocol/identify"
ma "github.com/multiformats/go-multiaddr"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestHostDoubleClose(t *testing.T) {
h1, err := NewHost(swarmt.GenSwarm(t), nil)
require.NoError(t, err)
h1.Close()
h1.Close()
}
func TestHostSimple(t *testing.T) {
ctx := context.Background()
h1, err := NewHost(swarmt.GenSwarm(t), nil)
require.NoError(t, err)
defer h1.Close()
h1.Start()
h2, err := NewHost(swarmt.GenSwarm(t), nil)
require.NoError(t, err)
defer h2.Close()
h2.Start()
h2pi := h2.Peerstore().PeerInfo(h2.ID())
require.NoError(t, h1.Connect(ctx, h2pi))
piper, pipew := io.Pipe()
h2.SetStreamHandler(protocol.TestingID, func(s network.Stream) {
defer s.Close()
w := io.MultiWriter(s, pipew)
io.Copy(w, s) // mirror everything
})
s, err := h1.NewStream(ctx, h2pi.ID, protocol.TestingID)
require.NoError(t, err)
// write to the stream
buf1 := []byte("abcdefghijkl")
_, err = s.Write(buf1)
require.NoError(t, err)
// get it from the stream (echoed)
buf2 := make([]byte, len(buf1))
_, err = io.ReadFull(s, buf2)
require.NoError(t, err)
require.Equal(t, buf1, buf2)
// get it from the pipe (tee)
buf3 := make([]byte, len(buf1))
_, err = io.ReadFull(piper, buf3)
require.NoError(t, err)
require.Equal(t, buf1, buf3)
}
func TestMultipleClose(t *testing.T) {
h, err := NewHost(swarmt.GenSwarm(t), nil)
require.NoError(t, err)
require.NoError(t, h.Close())
require.NoError(t, h.Close())
require.NoError(t, h.Close())
}
func TestSignedPeerRecordWithNoListenAddrs(t *testing.T) {
h, err := NewHost(swarmt.GenSwarm(t, swarmt.OptDialOnly), nil)
require.NoError(t, err)
defer h.Close()
h.Start()
require.Empty(t, h.Addrs(), "expected no listen addrs")
// now add a listen addr
require.NoError(t, h.Network().Listen(ma.StringCast("/ip4/0.0.0.0/tcp/0")))
require.NotEmpty(t, h.Addrs(), "expected at least 1 listen addr")
cab, ok := peerstore.GetCertifiedAddrBook(h.Peerstore())
if !ok {
t.Fatalf("peerstore doesn't support certified addrs")
}
// the signed record with the new addr is added async
var env *record.Envelope
require.Eventually(t, func() bool {
env = cab.GetPeerRecord(h.ID())
return env != nil
}, 500*time.Millisecond, 10*time.Millisecond)
rec, err := env.Record()
require.NoError(t, err)
require.NotEmpty(t, rec.(*peer.PeerRecord).Addrs)
}
func TestProtocolHandlerEvents(t *testing.T) {
h, err := NewHost(swarmt.GenSwarm(t), nil)
require.NoError(t, err)
defer h.Close()
sub, err := h.EventBus().Subscribe(&event.EvtLocalProtocolsUpdated{}, eventbus.BufSize(16))
require.NoError(t, err)
defer sub.Close()
// 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)
}
if !reflect.DeepEqual(removed, next.Removed) {
t.Errorf("expected removed: %v; received: %v", removed, next.Removed)
}
}
h.SetStreamHandler(protocol.TestingID, func(s network.Stream) {})
assert([]protocol.ID{protocol.TestingID}, nil)
h.SetStreamHandler("foo", func(s network.Stream) {})
assert([]protocol.ID{"foo"}, nil)
h.RemoveStreamHandler(protocol.TestingID)
assert(nil, []protocol.ID{protocol.TestingID})
}
func TestHostAddrsFactory(t *testing.T) {
maddr := ma.StringCast("/ip4/1.2.3.4/tcp/1234")
addrsFactory := func(addrs []ma.Multiaddr) []ma.Multiaddr {
return []ma.Multiaddr{maddr}
}
h, err := NewHost(swarmt.GenSwarm(t), &HostOpts{AddrsFactory: addrsFactory})
require.NoError(t, err)
defer h.Close()
addrs := h.Addrs()
if len(addrs) != 1 {
t.Fatalf("expected 1 addr, got %+v", addrs)
}
if !addrs[0].Equal(maddr) {
t.Fatalf("expected %s, got %s", maddr.String(), addrs[0].String())
}
autoNat, err := autonat.New(h, autonat.WithReachability(network.ReachabilityPublic))
if err != nil {
t.Fatalf("should be able to attach autonat: %v", err)
}
h.SetAutoNat(autoNat)
addrs = h.Addrs()
if len(addrs) != 1 {
t.Fatalf("didn't expect change in returned addresses.")
}
}
func TestLocalIPChangesWhenListenAddrChanges(t *testing.T) {
// no listen addrs
h, err := NewHost(swarmt.GenSwarm(t, swarmt.OptDialOnly), nil)
require.NoError(t, err)
h.Start()
defer h.Close()
h.addrMu.Lock()
h.filteredInterfaceAddrs = nil
h.allInterfaceAddrs = nil
h.addrMu.Unlock()
// change listen addrs and verify local IP addr is not nil again
require.NoError(t, h.Network().Listen(ma.StringCast("/ip4/0.0.0.0/tcp/0")))
h.SignalAddressChange()
time.Sleep(1 * time.Second)
h.addrMu.RLock()
defer h.addrMu.RUnlock()
require.NotEmpty(t, h.filteredInterfaceAddrs)
require.NotEmpty(t, h.allInterfaceAddrs)
}
func TestAllAddrs(t *testing.T) {
// no listen addrs
h, err := NewHost(swarmt.GenSwarm(t, swarmt.OptDialOnly), nil)
require.NoError(t, err)
defer h.Close()
require.Nil(t, h.AllAddrs())
// listen on loopback
laddr := ma.StringCast("/ip4/127.0.0.1/tcp/0")
require.NoError(t, h.Network().Listen(laddr))
require.Len(t, h.AllAddrs(), 1)
firstAddr := h.AllAddrs()[0]
require.Equal(t, "/ip4/127.0.0.1", ma.Split(firstAddr)[0].String())
// listen on IPv4 0.0.0.0
require.NoError(t, h.Network().Listen(ma.StringCast("/ip4/0.0.0.0/tcp/0")))
// should contain localhost and private local addr along with previous listen address
require.Len(t, h.AllAddrs(), 3)
// Should still contain the original addr.
require.True(t, ma.Contains(h.AllAddrs(), firstAddr), "should still contain the original addr")
}
// getHostPair gets a new pair of hosts.
// The first host initiates the connection to the second host.
func getHostPair(t *testing.T) (host.Host, host.Host) {
t.Helper()
h1, err := NewHost(swarmt.GenSwarm(t), nil)
require.NoError(t, err)
h1.Start()
h2, err := NewHost(swarmt.GenSwarm(t), nil)
require.NoError(t, err)
h2.Start()
ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
defer cancel()
h2pi := h2.Peerstore().PeerInfo(h2.ID())
require.NoError(t, h1.Connect(ctx, h2pi))
return h1, h2
}
func assertWait(t *testing.T, c chan protocol.ID, exp protocol.ID) {
t.Helper()
select {
case proto := <-c:
if proto != exp {
t.Fatalf("should have connected on %s, got %s", exp, proto)
}
case <-time.After(time.Second * 5):
t.Fatal("timeout waiting for stream")
}
}
func TestHostProtoPreference(t *testing.T) {
h1, h2 := getHostPair(t)
defer h1.Close()
defer h2.Close()
const (
protoOld = "/testing"
protoNew = "/testing/1.1.0"
protoMinor = "/testing/1.2.0"
)
connectedOn := make(chan protocol.ID)
handler := func(s network.Stream) {
connectedOn <- s.Protocol()
s.Close()
}
// Prevent pushing identify information so this test works.
h1.RemoveStreamHandler(identify.IDPush)
h2.SetStreamHandler(protoOld, handler)
s, err := h1.NewStream(context.Background(), h2.ID(), protoMinor, protoNew, protoOld)
require.NoError(t, err)
// force the lazy negotiation to complete
_, err = s.Write(nil)
require.NoError(t, err)
assertWait(t, connectedOn, protoOld)
s.Close()
h2.SetStreamHandlerMatch(protoMinor, func(protocol.ID) bool { return true }, handler)
// remembered preference will be chosen first, even when the other side newly supports it
s2, err := h1.NewStream(context.Background(), h2.ID(), protoMinor, protoNew, protoOld)
require.NoError(t, err)
// required to force 'lazy' handshake
_, err = s2.Write([]byte("hello"))
require.NoError(t, err)
assertWait(t, connectedOn, protoOld)
s2.Close()
s3, err := h1.NewStream(context.Background(), h2.ID(), protoMinor)
require.NoError(t, err)
// Force a lazy handshake as we may have received a protocol update by this point.
_, err = s3.Write([]byte("hello"))
require.NoError(t, err)
assertWait(t, connectedOn, protoMinor)
s3.Close()
}
func TestHostProtoMismatch(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
h1, h2 := getHostPair(t)
defer h1.Close()
defer h2.Close()
h1.SetStreamHandler("/super", func(s network.Stream) {
t.Error("shouldnt get here")
s.Reset()
})
_, err := h2.NewStream(ctx, h1.ID(), "/foo", "/bar", "/baz/1.0.0")
if err == nil {
t.Fatal("expected new stream to fail")
}
}
func TestHostProtoPreknowledge(t *testing.T) {
h1, err := NewHost(swarmt.GenSwarm(t, swarmt.OptDialOnly), nil)
require.NoError(t, err)
defer h1.Close()
h2, err := NewHost(swarmt.GenSwarm(t, swarmt.OptDisableTCP), nil)
require.NoError(t, err)
defer h2.Close()
conn := make(chan protocol.ID)
handler := func(s network.Stream) {
conn <- s.Protocol()
s.Close()
}
h2.SetStreamHandler("/super", handler)
h1.Start()
h2.Start()
// Prevent pushing identify information so this test actually _uses_ the super protocol.
h1.RemoveStreamHandler(identify.IDPush)
h2pi := h2.Peerstore().PeerInfo(h2.ID())
// Filter to only 1 address so that we don't have to think about parallel
// connections in this test
h2pi.Addrs = h2pi.Addrs[:1]
require.NoError(t, h1.Connect(context.Background(), h2pi))
// This test implicitly relies on 1 connection. If a background identify
// completes after we set the stream handler below things break
require.Equal(t, 1, len(h1.Network().ConnsToPeer(h2.ID())))
// wait for identify handshake to finish completely
select {
case <-h1.ids.IdentifyWait(h1.Network().ConnsToPeer(h2.ID())[0]):
case <-time.After(time.Second * 5):
t.Fatal("timed out waiting for identify")
}
select {
case <-h2.ids.IdentifyWait(h2.Network().ConnsToPeer(h1.ID())[0]):
case <-time.After(time.Second * 5):
t.Fatal("timed out waiting for identify")
}
h2.SetStreamHandler("/foo", handler)
require.Never(t, func() bool {
protos, err := h1.Peerstore().GetProtocols(h2.ID())
require.NoError(t, err)
for _, p := range protos {
if p == "/foo" {
return true
}
}
return false
}, time.Second, 100*time.Millisecond)
s, err := h1.NewStream(context.Background(), h2.ID(), "/foo", "/bar", "/super")
require.NoError(t, err)
select {
case p := <-conn:
t.Fatal("shouldn't have gotten connection yet, we should have a lazy stream: ", p)
case <-time.After(time.Millisecond * 50):
}
_, err = s.Read(nil)
require.NoError(t, err)
assertWait(t, conn, "/super")
s.Close()
}
func TestNewDialOld(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
h1, h2 := getHostPair(t)
defer h1.Close()
defer h2.Close()
connectedOn := make(chan protocol.ID)
h2.SetStreamHandler("/testing", func(s network.Stream) {
connectedOn <- s.Protocol()
s.Close()
})
s, err := h1.NewStream(ctx, h2.ID(), "/testing/1.0.0", "/testing")
require.NoError(t, err)
// force the lazy negotiation to complete
_, err = s.Write(nil)
require.NoError(t, err)
assertWait(t, connectedOn, "/testing")
require.Equal(t, s.Protocol(), protocol.ID("/testing"), "should have gotten /testing")
}
func TestNewStreamResolve(t *testing.T) {
h1, err := NewHost(swarmt.GenSwarm(t), nil)
require.NoError(t, err)
h1.Start()
h2, err := NewHost(swarmt.GenSwarm(t), nil)
require.NoError(t, err)
h2.Start()
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
defer cancel()
// Get the tcp port that h2 is listening on.
h2pi := h2.Peerstore().PeerInfo(h2.ID())
var dialAddr string
const tcpPrefix = "/ip4/127.0.0.1/tcp/"
for _, addr := range h2pi.Addrs {
addrStr := addr.String()
if strings.HasPrefix(addrStr, tcpPrefix) {
port := addrStr[len(tcpPrefix):]
dialAddr = "/dns4/localhost/tcp/" + port
break
}
}
assert.NotEqual(t, dialAddr, "")
// Add the DNS multiaddr to h1's peerstore.
maddr, err := ma.NewMultiaddr(dialAddr)
require.NoError(t, err)
h1.Peerstore().AddAddr(h2.ID(), maddr, time.Second)
connectedOn := make(chan protocol.ID)
h2.SetStreamHandler("/testing", func(s network.Stream) {
connectedOn <- s.Protocol()
s.Close()
})
// NewStream will make a new connection using the DNS address in h1's
// peerstore.
s, err := h1.NewStream(ctx, h2.ID(), "/testing/1.0.0", "/testing")
require.NoError(t, err)
// force the lazy negotiation to complete
_, err = s.Write(nil)
require.NoError(t, err)
assertWait(t, connectedOn, "/testing")
}
func TestProtoDowngrade(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
h1, h2 := getHostPair(t)
defer h1.Close()
defer h2.Close()
connectedOn := make(chan protocol.ID)
h2.SetStreamHandler("/testing/1.0.0", func(s network.Stream) {
defer s.Close()
result, err := io.ReadAll(s)
assert.NoError(t, err)
assert.Equal(t, string(result), "bar")
connectedOn <- s.Protocol()
})
s, err := h1.NewStream(ctx, h2.ID(), "/testing/1.0.0", "/testing")
require.NoError(t, err)
require.Equal(t, s.Protocol(), protocol.ID("/testing/1.0.0"), "should have gotten /testing/1.0.0, got %s", s.Protocol())
_, err = s.Write([]byte("bar"))
require.NoError(t, err)
require.NoError(t, s.CloseWrite())
assertWait(t, connectedOn, "/testing/1.0.0")
require.NoError(t, s.Close())
h1.Network().ClosePeer(h2.ID())
h2.RemoveStreamHandler("/testing/1.0.0")
h2.SetStreamHandler("/testing", func(s network.Stream) {
defer s.Close()
result, err := io.ReadAll(s)
assert.NoError(t, err)
assert.Equal(t, string(result), "foo")
connectedOn <- s.Protocol()
})
// Give us a second to update our protocol list. This happens async through the event bus.
// This is _almost_ instantaneous, but this test fails once every ~1k runs without this.
time.Sleep(time.Millisecond)
h2pi := h2.Peerstore().PeerInfo(h2.ID())
require.NoError(t, h1.Connect(ctx, h2pi))
s2, err := h1.NewStream(ctx, h2.ID(), "/testing/1.0.0", "/testing")
require.NoError(t, err)
require.Equal(t, s2.Protocol(), protocol.ID("/testing"), "should have gotten /testing, got %s, %s", s.Protocol(), s.Conn())
_, err = s2.Write([]byte("foo"))
require.NoError(t, err)
require.NoError(t, s2.CloseWrite())
assertWait(t, connectedOn, "/testing")
}
func TestAddrChangeImmediatelyIfAddressNonEmpty(t *testing.T) {
ctx := context.Background()
taddrs := []ma.Multiaddr{ma.StringCast("/ip4/1.2.3.4/tcp/1234")}
starting := make(chan struct{})
h, err := NewHost(swarmt.GenSwarm(t), &HostOpts{AddrsFactory: func(addrs []ma.Multiaddr) []ma.Multiaddr {
<-starting
return taddrs
}})
require.NoError(t, err)
defer h.Close()
sub, err := h.EventBus().Subscribe(&event.EvtLocalAddressesUpdated{})
close(starting)
if err != nil {
t.Error(err)
}
defer sub.Close()
h.Start()
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 TestStatefulAddrEvents(t *testing.T) {
h, err := NewHost(swarmt.GenSwarm(t), nil)
require.NoError(t, err)
h.Start()
defer h.Close()
sub, err := h.EventBus().Subscribe(&event.EvtLocalAddressesUpdated{}, eventbus.BufSize(10))
if err != nil {
t.Error(err)
}
defer sub.Close()
select {
case v := <-sub.Out():
assert.NotNil(t, v)
case <-time.After(time.Second * 5):
t.Error("timed out waiting for event")
}
}
func TestHostAddrChangeDetection(t *testing.T) {
// This test uses the address factory to provide several
// sets of listen addresses for the host. It advances through
// the sets by changing the currentAddrSet index var below.
addrSets := [][]ma.Multiaddr{
{},
{ma.StringCast("/ip4/1.2.3.4/tcp/1234")},
{ma.StringCast("/ip4/1.2.3.4/tcp/1234"), ma.StringCast("/ip4/2.3.4.5/tcp/1234")},
{ma.StringCast("/ip4/2.3.4.5/tcp/1234"), ma.StringCast("/ip4/3.4.5.6/tcp/4321")},
}
// The events we expect the host to emit when SignalAddressChange is called
// and the changes between addr sets are detected
expectedEvents := []event.EvtLocalAddressesUpdated{
{
Diffs: true,
Current: []event.UpdatedAddress{
{Action: event.Added, Address: ma.StringCast("/ip4/1.2.3.4/tcp/1234")},
},
Removed: []event.UpdatedAddress{},
},
{
Diffs: true,
Current: []event.UpdatedAddress{
{Action: event.Maintained, Address: ma.StringCast("/ip4/1.2.3.4/tcp/1234")},
{Action: event.Added, Address: ma.StringCast("/ip4/2.3.4.5/tcp/1234")},
},
Removed: []event.UpdatedAddress{},
},
{
Diffs: true,
Current: []event.UpdatedAddress{
{Action: event.Added, Address: ma.StringCast("/ip4/3.4.5.6/tcp/4321")},
{Action: event.Maintained, Address: ma.StringCast("/ip4/2.3.4.5/tcp/1234")},
},
Removed: []event.UpdatedAddress{
{Action: event.Removed, Address: ma.StringCast("/ip4/1.2.3.4/tcp/1234")},
},
},
}
var lk sync.Mutex
currentAddrSet := 0
addrsFactory := func(addrs []ma.Multiaddr) []ma.Multiaddr {
lk.Lock()
defer lk.Unlock()
return addrSets[currentAddrSet]
}
ctx := context.Background()
h, err := NewHost(swarmt.GenSwarm(t), &HostOpts{AddrsFactory: addrsFactory})
require.NoError(t, err)
h.Start()
defer h.Close()
sub, err := h.EventBus().Subscribe(&event.EvtLocalAddressesUpdated{}, eventbus.BufSize(10))
require.NoError(t, err)
defer sub.Close()
// wait for the host background thread to start
time.Sleep(1 * time.Second)
// host should start with no addrs (addrSet 0)
addrs := h.Addrs()
if len(addrs) != 0 {
t.Fatalf("expected 0 addrs, got %d", len(addrs))
}
// change addr, signal and assert event
for i := 1; i < len(addrSets); i++ {
lk.Lock()
currentAddrSet = i
lk.Unlock()
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-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)
}
}
func TestNegotiationCancel(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
h1, h2 := getHostPair(t)
defer h1.Close()
defer h2.Close()
// pre-negotiation so we can make the negotiation hang.
h2.Network().SetStreamHandler(func(s network.Stream) {
<-ctx.Done() // wait till the test is done.
s.Reset()
})
ctx2, cancel2 := context.WithCancel(ctx)
defer cancel2()
errCh := make(chan error, 1)
go func() {
s, err := h1.NewStream(ctx2, h2.ID(), "/testing")
if s != nil {
errCh <- fmt.Errorf("expected to fail negotiation")
return
}
errCh <- err
}()
select {
case err := <-errCh:
t.Fatal(err)
case <-time.After(10 * time.Millisecond):
// ok, hung.
}
cancel2()
select {
case err := <-errCh:
require.ErrorIs(t, err, context.Canceled)
case <-time.After(500 * time.Millisecond):
// failed to cancel
t.Fatal("expected negotiation to be canceled")
}
}
func waitForAddrChangeEvent(ctx context.Context, sub event.Subscription, t *testing.T) event.EvtLocalAddressesUpdated {
t.Helper()
for {
select {
case evt, more := <-sub.Out():
if !more {
t.Fatal("channel should not be closed")
}
return evt.(event.EvtLocalAddressesUpdated)
case <-ctx.Done():
t.Fatal("context should not have cancelled")
case <-time.After(5 * time.Second):
t.Fatal("timed out waiting for address change event")
}
}
}
// updatedAddrsEqual is a helper to check whether two lists of
// event.UpdatedAddress have the same contents, ignoring ordering.
func updatedAddrsEqual(a, b []event.UpdatedAddress) bool {
if len(a) != len(b) {
return false
}
// We can't use an UpdatedAddress directly as a map key, since
// Multiaddr is an interface, and go won't know how to compare
// for equality. So we convert to this little struct, which
// stores the multiaddr as a string.
type ua struct {
action event.AddrAction
addrStr string
}
aSet := make(map[ua]struct{})
for _, addr := range a {
k := ua{action: addr.Action, addrStr: string(addr.Address.Bytes())}
aSet[k] = struct{}{}
}
for _, addr := range b {
k := ua{action: addr.Action, addrStr: string(addr.Address.Bytes())}
_, ok := aSet[k]
if !ok {
return false
}
}
return true
}
// updatedAddrEventsEqual is a helper to check whether two
// event.EvtLocalAddressesUpdated are equal, ignoring the ordering of
// addresses in the inner lists.
func updatedAddrEventsEqual(a, b event.EvtLocalAddressesUpdated) bool {
return a.Diffs == b.Diffs &&
updatedAddrsEqual(a.Current, b.Current) &&
updatedAddrsEqual(a.Removed, b.Removed)
}
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
}
func TestNormalizeMultiaddr(t *testing.T) {
h1, err := NewHost(swarmt.GenSwarm(t), nil)
require.NoError(t, err)
defer h1.Close()
require.Equal(t, "/ip4/1.2.3.4/udp/9999/quic-v1/webtransport", h1.NormalizeMultiaddr(ma.StringCast("/ip4/1.2.3.4/udp/9999/quic-v1/webtransport/certhash/uEgNmb28")).String())
}
func TestInferWebtransportAddrsFromQuic(t *testing.T) {
type testCase struct {
name string
in []string
out []string
}
testCases := []testCase{
{
name: "Happy Path",
in: []string{"/ip4/0.0.0.0/udp/9999/quic-v1", "/ip4/0.0.0.0/udp/9999/quic-v1/webtransport", "/ip4/1.2.3.4/udp/9999/quic-v1"},
out: []string{"/ip4/0.0.0.0/udp/9999/quic-v1", "/ip4/0.0.0.0/udp/9999/quic-v1/webtransport", "/ip4/1.2.3.4/udp/9999/quic-v1", "/ip4/1.2.3.4/udp/9999/quic-v1/webtransport"},
},
{
name: "Already discovered",
in: []string{"/ip4/0.0.0.0/udp/9999/quic-v1", "/ip4/0.0.0.0/udp/9999/quic-v1/webtransport", "/ip4/1.2.3.4/udp/9999/quic-v1", "/ip4/1.2.3.4/udp/9999/quic-v1/webtransport"},
out: []string{"/ip4/0.0.0.0/udp/9999/quic-v1", "/ip4/0.0.0.0/udp/9999/quic-v1/webtransport", "/ip4/1.2.3.4/udp/9999/quic-v1", "/ip4/1.2.3.4/udp/9999/quic-v1/webtransport"},
},
{
name: "Infer Many",
in: []string{"/ip4/0.0.0.0/udp/9999/quic-v1", "/ip4/0.0.0.0/udp/9999/quic-v1/webtransport", "/ip4/1.2.3.4/udp/9999/quic-v1", "/ip4/4.3.2.1/udp/9999/quic-v1"},
out: []string{"/ip4/0.0.0.0/udp/9999/quic-v1", "/ip4/0.0.0.0/udp/9999/quic-v1/webtransport", "/ip4/1.2.3.4/udp/9999/quic-v1", "/ip4/4.3.2.1/udp/9999/quic-v1", "/ip4/1.2.3.4/udp/9999/quic-v1/webtransport", "/ip4/4.3.2.1/udp/9999/quic-v1/webtransport"},
},
{
name: "No Common listeners",
in: []string{"/ip4/0.0.0.0/udp/9999/quic-v1", "/ip4/0.0.0.0/udp/1111/quic-v1/webtransport", "/ip4/1.2.3.4/udp/9999/quic-v1"},
out: []string{"/ip4/0.0.0.0/udp/9999/quic-v1", "/ip4/0.0.0.0/udp/1111/quic-v1/webtransport", "/ip4/1.2.3.4/udp/9999/quic-v1"},
},
{
name: "No WebTransport",
in: []string{"/ip4/0.0.0.0/udp/9999/quic-v1", "/ip4/1.2.3.4/udp/9999/quic-v1"},
out: []string{"/ip4/0.0.0.0/udp/9999/quic-v1", "/ip4/1.2.3.4/udp/9999/quic-v1"},
},
}
// Make sure the testCases are all valid multiaddrs
for _, tc := range testCases {
for _, addr := range tc.in {
_, err := ma.NewMultiaddr(addr)
require.NoError(t, err)
}
for _, addr := range tc.out {
_, err := ma.NewMultiaddr(addr)
require.NoError(t, err)
}
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
sort.StringSlice(tc.in).Sort()
sort.StringSlice(tc.out).Sort()
min := make([]ma.Multiaddr, 0, len(tc.in))
sort.Slice(tc.in, func(i, j int) bool {
return tc.in[i] < tc.in[j]
})
for _, addr := range tc.in {
min = append(min, ma.StringCast(addr))
}
outMa := inferWebtransportAddrsFromQuic(min)
outStr := make([]string, 0, len(outMa))
for _, addr := range outMa {
outStr = append(outStr, addr.String())
}
require.Equal(t, tc.out, outStr)
})
}
}