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package libp2p
import (
"context"
"crypto/rand"
"errors"
"fmt"
"regexp"
"testing"
"github.com/libp2p/go-libp2p/core/connmgr"
"github.com/libp2p/go-libp2p/core/crypto"
"github.com/libp2p/go-libp2p/core/host"
"github.com/libp2p/go-libp2p/core/peer"
"github.com/libp2p/go-libp2p/core/routing"
"github.com/libp2p/go-libp2p/core/transport"
"github.com/libp2p/go-libp2p/p2p/net/swarm"
"github.com/libp2p/go-libp2p/p2p/security/noise"
tls "github.com/libp2p/go-libp2p/p2p/security/tls"
quic "github.com/libp2p/go-libp2p/p2p/transport/quic"
"github.com/libp2p/go-libp2p/p2p/transport/tcp"
webtransport "github.com/libp2p/go-libp2p/p2p/transport/webtransport"
"go.uber.org/goleak"
ma "github.com/multiformats/go-multiaddr"
"github.com/stretchr/testify/require"
)
func TestNewHost(t *testing.T) {
h, err := makeRandomHost(t, 9000)
if err != nil {
t.Fatal(err)
}
h.Close()
}
func TestTransportConstructor(t *testing.T) {
ctor := func(
h host.Host,
_ connmgr.ConnectionGater,
upgrader transport.Upgrader,
) transport.Transport {
tpt, err := tcp.NewTCPTransport(upgrader, nil)
require.NoError(t, err)
return tpt
}
h, err := New(Transport(ctor))
require.NoError(t, err)
h.Close()
}
func TestNoListenAddrs(t *testing.T) {
h, err := New(NoListenAddrs)
require.NoError(t, err)
defer h.Close()
if len(h.Addrs()) != 0 {
t.Fatal("expected no addresses")
}
}
func TestNoTransports(t *testing.T) {
ctx := context.Background()
a, err := New(NoTransports)
require.NoError(t, err)
defer a.Close()
b, err := New(ListenAddrStrings("/ip4/127.0.0.1/tcp/0"))
require.NoError(t, err)
defer b.Close()
err = a.Connect(ctx, peer.AddrInfo{
ID: b.ID(),
Addrs: b.Addrs(),
})
if err == nil {
t.Error("dial should have failed as no transports have been configured")
}
}
func TestInsecure(t *testing.T) {
h, err := New(NoSecurity)
require.NoError(t, err)
h.Close()
}
func TestDefaultListenAddrs(t *testing.T) {
reTCP := regexp.MustCompile("/(ip)[4|6]/((0.0.0.0)|(::))/tcp/")
reQUIC := regexp.MustCompile("/(ip)[4|6]/((0.0.0.0)|(::))/udp/([0-9]*)/quic-v1")
reCircuit := regexp.MustCompile("/p2p-circuit")
// Test 1: Setting the correct listen addresses if userDefined.Transport == nil && userDefined.ListenAddrs == nil
h, err := New()
require.NoError(t, err)
for _, addr := range h.Network().ListenAddresses() {
if reTCP.FindStringSubmatchIndex(addr.String()) == nil &&
reQUIC.FindStringSubmatchIndex(addr.String()) == nil &&
reCircuit.FindStringSubmatchIndex(addr.String()) == nil {
t.Error("expected ip4 or ip6 or relay interface")
}
}
h.Close()
// Test 2: Listen addr only include relay if user defined transport is passed.
h, err = New(Transport(tcp.NewTCPTransport))
require.NoError(t, err)
if len(h.Network().ListenAddresses()) != 1 {
t.Error("expected one listen addr with user defined transport")
}
if reCircuit.FindStringSubmatchIndex(h.Network().ListenAddresses()[0].String()) == nil {
t.Error("expected relay address")
}
h.Close()
}
func makeRandomHost(t *testing.T, port int) (host.Host, error) {
priv, _, err := crypto.GenerateKeyPair(crypto.RSA, 2048)
require.NoError(t, err)
return New([]Option{
ListenAddrStrings(fmt.Sprintf("/ip4/127.0.0.1/tcp/%d", port)),
Identity(priv),
DefaultTransports,
DefaultMuxers,
DefaultSecurity,
NATPortMap(),
}...)
}
func TestChainOptions(t *testing.T) {
var cfg Config
var optsRun []int
optcount := 0
newOpt := func() Option {
index := optcount
optcount++
return func(c *Config) error {
optsRun = append(optsRun, index)
return nil
}
}
if err := cfg.Apply(newOpt(), nil, ChainOptions(newOpt(), newOpt(), ChainOptions(), ChainOptions(nil, newOpt()))); err != nil {
t.Fatal(err)
}
// Make sure we ran all options.
if optcount != 4 {
t.Errorf("expected to have handled %d options, handled %d", optcount, len(optsRun))
}
// Make sure we ran the options in-order.
for i, x := range optsRun {
if i != x {
t.Errorf("expected opt %d, got opt %d", i, x)
}
}
}
func TestTransportConstructorTCP(t *testing.T) {
h, err := New(
Transport(tcp.NewTCPTransport, tcp.DisableReuseport()),
DisableRelay(),
)
require.NoError(t, err)
defer h.Close()
require.NoError(t, h.Network().Listen(ma.StringCast("/ip4/127.0.0.1/tcp/0")))
err = h.Network().Listen(ma.StringCast("/ip4/127.0.0.1/udp/0/quic-v1"))
require.Error(t, err)
require.Contains(t, err.Error(), swarm.ErrNoTransport.Error())
}
func TestTransportConstructorQUIC(t *testing.T) {
h, err := New(
Transport(quic.NewTransport),
DisableRelay(),
)
require.NoError(t, err)
defer h.Close()
require.NoError(t, h.Network().Listen(ma.StringCast("/ip4/127.0.0.1/udp/0/quic-v1")))
err = h.Network().Listen(ma.StringCast("/ip4/127.0.0.1/tcp/0"))
require.Error(t, err)
require.Contains(t, err.Error(), swarm.ErrNoTransport.Error())
}
type mockTransport struct{}
func (m mockTransport) Dial(context.Context, ma.Multiaddr, peer.ID) (transport.CapableConn, error) {
panic("implement me")
}
func (m mockTransport) CanDial(ma.Multiaddr) bool { panic("implement me") }
func (m mockTransport) Listen(ma.Multiaddr) (transport.Listener, error) { panic("implement me") }
func (m mockTransport) Protocols() []int { return []int{1337} }
func (m mockTransport) Proxy() bool { panic("implement me") }
var _ transport.Transport = &mockTransport{}
func TestTransportConstructorWithoutOpts(t *testing.T) {
t.Run("successful", func(t *testing.T) {
var called bool
constructor := func() transport.Transport {
called = true
return &mockTransport{}
}
h, err := New(
Transport(constructor),
DisableRelay(),
)
require.NoError(t, err)
require.True(t, called, "expected constructor to be called")
defer h.Close()
})
t.Run("with options", func(t *testing.T) {
var called bool
constructor := func() transport.Transport {
called = true
return &mockTransport{}
}
_, err := New(
Transport(constructor, tcp.DisableReuseport()),
DisableRelay(),
)
require.EqualError(t, err, "transport constructor doesn't take any options")
require.False(t, called, "didn't expected constructor to be called")
})
}
func TestTransportConstructorWithWrongOpts(t *testing.T) {
_, err := New(
Transport(quic.NewTransport, tcp.DisableReuseport()),
DisableRelay(),
)
require.EqualError(t, err, "transport constructor doesn't take any options")
}
func TestSecurityConstructor(t *testing.T) {
h, err := New(
Transport(tcp.NewTCPTransport),
Security("/noisy", noise.New),
Security("/tls", tls.New),
DefaultListenAddrs,
DisableRelay(),
)
require.NoError(t, err)
defer h.Close()
h1, err := New(
NoListenAddrs,
Transport(tcp.NewTCPTransport),
Security("/noise", noise.New), // different name
DisableRelay(),
)
require.NoError(t, err)
defer h1.Close()
h2, err := New(
NoListenAddrs,
Transport(tcp.NewTCPTransport),
Security("/noisy", noise.New),
DisableRelay(),
)
require.NoError(t, err)
defer h2.Close()
ai := peer.AddrInfo{
ID: h.ID(),
Addrs: h.Addrs(),
}
err = h1.Connect(context.Background(), ai)
require.Error(t, err)
require.Contains(t, err.Error(), "failed to negotiate security protocol")
require.NoError(t, h2.Connect(context.Background(), ai))
}
func TestTransportConstructorWebTransport(t *testing.T) {
h, err := New(
Transport(webtransport.New),
DisableRelay(),
)
require.NoError(t, err)
defer h.Close()
require.NoError(t, h.Network().Listen(ma.StringCast("/ip4/127.0.0.1/udp/0/quic-v1/webtransport")))
err = h.Network().Listen(ma.StringCast("/ip4/127.0.0.1/udp/0/quic-v1/"))
require.Error(t, err)
require.Contains(t, err.Error(), swarm.ErrNoTransport.Error())
}
func TestTransportCustomAddressWebTransport(t *testing.T) {
customAddr, err := ma.NewMultiaddr("/ip4/127.0.0.1/udp/0/quic-v1/webtransport")
if err != nil {
t.Fatal(err)
}
h, err := New(
Transport(webtransport.New),
ListenAddrs(customAddr),
DisableRelay(),
AddrsFactory(func(multiaddrs []ma.Multiaddr) []ma.Multiaddr {
return []ma.Multiaddr{customAddr}
}),
)
require.NoError(t, err)
defer h.Close()
require.NoError(t, h.Network().Listen(ma.StringCast("/ip4/127.0.0.1/udp/0/quic-v1/webtransport")))
addrs := h.Addrs()
require.Len(t, addrs, 1)
require.NotEqual(t, addrs[0], customAddr)
restOfAddr, lastComp := ma.SplitLast(addrs[0])
restOfAddr, secondToLastComp := ma.SplitLast(restOfAddr)
require.Equal(t, ma.P_CERTHASH, lastComp.Protocol().Code)
require.Equal(t, ma.P_CERTHASH, secondToLastComp.Protocol().Code)
require.True(t, restOfAddr.Equal(customAddr))
}
// TestTransportCustomAddressWebTransportDoesNotStall tests that if the user
// manually returns a webtransport address from AddrsFactory, but we aren't
// listening on a webtranport address, we don't stall.
func TestTransportCustomAddressWebTransportDoesNotStall(t *testing.T) {
customAddr, err := ma.NewMultiaddr("/ip4/127.0.0.1/udp/0/quic-v1/webtransport")
if err != nil {
t.Fatal(err)
}
h, err := New(
Transport(webtransport.New),
// Purposely not listening on the custom address so that we make sure the node doesn't stall if it fails to add a certhash to the multiaddr
// ListenAddrs(customAddr),
DisableRelay(),
AddrsFactory(func(multiaddrs []ma.Multiaddr) []ma.Multiaddr {
return []ma.Multiaddr{customAddr}
}),
)
require.NoError(t, err)
defer h.Close()
addrs := h.Addrs()
require.Len(t, addrs, 1)
_, lastComp := ma.SplitLast(addrs[0])
require.NotEqual(t, ma.P_CERTHASH, lastComp.Protocol().Code)
// We did not add the certhash to the multiaddr
require.Equal(t, addrs[0], customAddr)
}
type mockPeerRouting struct {
queried []peer.ID
}
func (r *mockPeerRouting) FindPeer(_ context.Context, id peer.ID) (peer.AddrInfo, error) {
r.queried = append(r.queried, id)
return peer.AddrInfo{}, errors.New("mock peer routing error")
}
func TestRoutedHost(t *testing.T) {
mockRouter := &mockPeerRouting{}
h, err := New(
NoListenAddrs,
Routing(func(host.Host) (routing.PeerRouting, error) { return mockRouter, nil }),
DisableRelay(),
)
require.NoError(t, err)
defer h.Close()
priv, _, err := crypto.GenerateEd25519Key(rand.Reader)
require.NoError(t, err)
id, err := peer.IDFromPrivateKey(priv)
require.NoError(t, err)
require.EqualError(t, h.Connect(context.Background(), peer.AddrInfo{ID: id}), "mock peer routing error")
require.Equal(t, []peer.ID{id}, mockRouter.queried)
}
func TestAutoNATService(t *testing.T) {
h, err := New(EnableNATService())
require.NoError(t, err)
h.Close()
}
func TestDisableIdentifyAddressDiscovery(t *testing.T) {
h, err := New(DisableIdentifyAddressDiscovery())
require.NoError(t, err)
h.Close()
}
func TestMain(m *testing.M) {
goleak.VerifyTestMain(
m,
// This will return eventually (5s timeout) but doesn't take a context.
goleak.IgnoreAnyFunction("github.com/koron/go-ssdp.Search"),
// Logging & Stats
goleak.IgnoreTopFunction("github.com/ipfs/go-log/v2/writer.(*MirrorWriter).logRoutine"),
goleak.IgnoreTopFunction("go.opencensus.io/stats/view.(*worker).start"),
goleak.IgnoreAnyFunction("github.com/jackpal/go-nat-pmp.(*Client).GetExternalAddress"),
)
}