ceremonyclient/go-libp2p-kad-dht/dual/dual_test.go
2024-10-12 11:48:25 -07:00

400 lines
8.9 KiB
Go

package dual
import (
"context"
"testing"
"time"
u "github.com/ipfs/boxo/util"
"github.com/ipfs/go-cid"
dht "github.com/libp2p/go-libp2p-kad-dht"
test "github.com/libp2p/go-libp2p-kad-dht/internal/testing"
record "github.com/libp2p/go-libp2p-record"
"github.com/libp2p/go-libp2p/core/host"
"github.com/libp2p/go-libp2p/core/peer"
peerstore "github.com/libp2p/go-libp2p/core/peerstore"
bhost "github.com/libp2p/go-libp2p/p2p/host/basic"
swarmt "github.com/libp2p/go-libp2p/p2p/net/swarm/testing"
"github.com/multiformats/go-multiaddr"
"github.com/stretchr/testify/require"
)
var wancid, lancid cid.Cid
func init() {
wancid = cid.NewCidV1(cid.DagCBOR, u.Hash([]byte("wan cid -- value")))
lancid = cid.NewCidV1(cid.DagCBOR, u.Hash([]byte("lan cid -- value")))
}
type blankValidator struct{}
func (blankValidator) Validate(_ string, _ []byte) error { return nil }
func (blankValidator) Select(_ string, _ [][]byte) (int, error) { return 0, nil }
type customRtHelper struct {
allow peer.ID
}
func MkFilterForPeer() (func(_ interface{}, p peer.ID) bool, *customRtHelper) {
helper := customRtHelper{}
type hasHost interface {
Host() host.Host
}
f := func(dht interface{}, p peer.ID) bool {
d := dht.(hasHost)
conns := d.Host().Network().ConnsToPeer(p)
for _, c := range conns {
if c.RemotePeer() == helper.allow {
return true
}
}
return false
}
return f, &helper
}
func setupDHTWithFilters(ctx context.Context, t *testing.T, options ...dht.Option) (*DHT, []*customRtHelper) {
h, err := bhost.NewHost(swarmt.GenSwarm(t, swarmt.OptDisableReuseport), new(bhost.HostOpts))
require.NoError(t, err)
h.Start()
t.Cleanup(func() { h.Close() })
wanFilter, wanRef := MkFilterForPeer()
wanOpts := []dht.Option{
dht.NamespacedValidator("v", blankValidator{}),
dht.ProtocolPrefix("/test"),
dht.DisableAutoRefresh(),
dht.RoutingTableFilter(wanFilter),
}
wan, err := dht.New(ctx, h, wanOpts...)
require.NoError(t, err)
lanFilter, lanRef := MkFilterForPeer()
lanOpts := []dht.Option{
dht.NamespacedValidator("v", blankValidator{}),
dht.ProtocolPrefix("/test"),
dht.ProtocolExtension(LanExtension),
dht.DisableAutoRefresh(),
dht.RoutingTableFilter(lanFilter),
dht.Mode(dht.ModeServer),
}
lan, err := dht.New(ctx, h, lanOpts...)
require.NoError(t, err)
impl := DHT{wan, lan}
return &impl, []*customRtHelper{wanRef, lanRef}
}
func setupDHT(ctx context.Context, t *testing.T, options ...dht.Option) *DHT {
t.Helper()
host, err := bhost.NewHost(swarmt.GenSwarm(t, swarmt.OptDisableReuseport), new(bhost.HostOpts))
require.NoError(t, err)
host.Start()
t.Cleanup(func() { host.Close() })
baseOpts := []dht.Option{
dht.NamespacedValidator("v", blankValidator{}),
dht.ProtocolPrefix("/test"),
dht.DisableAutoRefresh(),
}
d, err := New(
ctx,
host,
append([]Option{DHTOption(baseOpts...)}, DHTOption(options...))...,
)
require.NoError(t, err)
return d
}
func connect(ctx context.Context, t *testing.T, a, b *dht.IpfsDHT) {
t.Helper()
bid := b.PeerID()
baddr := b.Host().Peerstore().Addrs(bid)
if len(baddr) == 0 {
t.Fatal("no addresses for connection.")
}
a.Host().Peerstore().AddAddrs(bid, baddr, peerstore.TempAddrTTL)
if err := a.Host().Connect(ctx, peer.AddrInfo{ID: bid}); err != nil {
t.Fatal(err)
}
wait(ctx, t, a, b)
}
func wait(ctx context.Context, t *testing.T, a, b *dht.IpfsDHT) {
t.Helper()
for a.RoutingTable().Find(b.PeerID()) == "" {
// fmt.Fprintf(os.Stderr, "%v\n", a.RoutingTable().GetPeerInfos())
select {
case <-ctx.Done():
t.Fatal(ctx.Err())
case <-time.After(time.Millisecond * 5):
}
}
}
func setupTier(ctx context.Context, t *testing.T) (*DHT, *dht.IpfsDHT, *dht.IpfsDHT) {
t.Helper()
baseOpts := []dht.Option{
dht.NamespacedValidator("v", blankValidator{}),
dht.ProtocolPrefix("/test"),
dht.DisableAutoRefresh(),
}
d, hlprs := setupDHTWithFilters(ctx, t)
whost, err := bhost.NewHost(swarmt.GenSwarm(t, swarmt.OptDisableReuseport), new(bhost.HostOpts))
require.NoError(t, err)
whost.Start()
t.Cleanup(func() { whost.Close() })
wan, err := dht.New(
ctx,
whost,
append(baseOpts, dht.Mode(dht.ModeServer))...,
)
if err != nil {
t.Fatal(err)
}
hlprs[0].allow = wan.PeerID()
connect(ctx, t, d.WAN, wan)
lhost, err := bhost.NewHost(swarmt.GenSwarm(t, swarmt.OptDisableReuseport), new(bhost.HostOpts))
require.NoError(t, err)
lhost.Start()
t.Cleanup(func() { lhost.Close() })
lan, err := dht.New(
ctx,
lhost,
append(baseOpts, dht.Mode(dht.ModeServer), dht.ProtocolExtension("/lan"))...,
)
if err != nil {
t.Fatal(err)
}
hlprs[1].allow = lan.PeerID()
connect(ctx, t, d.LAN, lan)
return d, wan, lan
}
func TestDualModes(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
defer cancel()
d := setupDHT(ctx, t)
defer d.Close()
if d.WAN.Mode() != dht.ModeAuto {
t.Fatal("wrong default mode for wan")
} else if d.LAN.Mode() != dht.ModeServer {
t.Fatal("wrong default mode for lan")
}
d2 := setupDHT(ctx, t, dht.Mode(dht.ModeClient))
defer d2.Close()
if d2.WAN.Mode() != dht.ModeClient ||
d2.LAN.Mode() != dht.ModeClient {
t.Fatal("wrong client mode operation")
}
}
func TestFindProviderAsync(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
defer cancel()
d, wan, lan := setupTier(ctx, t)
defer d.Close()
defer wan.Close()
defer lan.Close()
time.Sleep(5 * time.Millisecond)
if err := wan.Provide(ctx, wancid, false); err != nil {
t.Fatal(err)
}
if err := lan.Provide(ctx, lancid, true); err != nil {
t.Fatal(err)
}
wpc := d.FindProvidersAsync(ctx, wancid, 1)
select {
case p := <-wpc:
if p.ID != wan.PeerID() {
t.Fatal("wrong wan provider")
}
case <-ctx.Done():
t.Fatal("find provider timeout.")
}
lpc := d.FindProvidersAsync(ctx, lancid, 1)
select {
case p := <-lpc:
if p.ID != lan.PeerID() {
t.Fatal("wrong lan provider")
}
case <-ctx.Done():
t.Fatal("find provider timeout.")
}
}
func TestValueGetSet(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
defer cancel()
d, wan, lan := setupTier(ctx, t)
defer d.Close()
defer wan.Close()
defer lan.Close()
time.Sleep(5 * time.Millisecond)
err := d.PutValue(ctx, "/v/hello", []byte("valid"))
if err != nil {
t.Fatal(err)
}
val, err := wan.GetValue(ctx, "/v/hello")
if err != nil {
t.Fatal(err)
}
if string(val) != "valid" {
t.Fatal("failed to get expected string.")
}
_, err = lan.GetValue(ctx, "/v/hello")
if err == nil {
t.Fatal(err)
}
}
func TestSearchValue(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
defer cancel()
d, wan, lan := setupTier(ctx, t)
defer d.Close()
defer wan.Close()
defer lan.Close()
d.WAN.Validator.(record.NamespacedValidator)["v"] = test.TestValidator{}
d.LAN.Validator.(record.NamespacedValidator)["v"] = test.TestValidator{}
_ = wan.PutValue(ctx, "/v/hello", []byte("valid"))
valCh, err := d.SearchValue(ctx, "/v/hello", dht.Quorum(0))
if err != nil {
t.Fatal(err)
}
select {
case v := <-valCh:
if string(v) != "valid" {
t.Errorf("expected 'valid', got '%s'", string(v))
}
case <-ctx.Done():
t.Fatal(ctx.Err())
}
select {
case _, ok := <-valCh:
if ok {
t.Errorf("chan should close")
}
case <-ctx.Done():
t.Fatal(ctx.Err())
}
err = lan.PutValue(ctx, "/v/hello", []byte("newer"))
if err != nil {
t.Error(err)
}
valCh, err = d.SearchValue(ctx, "/v/hello", dht.Quorum(0))
if err != nil {
t.Fatal(err)
}
var lastVal []byte
for c := range valCh {
lastVal = c
}
if string(lastVal) != "newer" {
t.Fatal("incorrect best search value")
}
}
func TestGetPublicKey(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
defer cancel()
d, wan, lan := setupTier(ctx, t)
defer d.Close()
defer wan.Close()
defer lan.Close()
time.Sleep(5 * time.Millisecond)
pk, err := d.GetPublicKey(ctx, wan.PeerID())
if err != nil {
t.Fatal(err)
}
id, err := peer.IDFromPublicKey(pk)
if err != nil {
t.Fatal(err)
}
if id != wan.PeerID() {
t.Fatal("incorrect PK")
}
pk, err = d.GetPublicKey(ctx, lan.PeerID())
if err != nil {
t.Fatal(err)
}
id, err = peer.IDFromPublicKey(pk)
if err != nil {
t.Fatal(err)
}
if id != lan.PeerID() {
t.Fatal("incorrect PK")
}
}
func TestFindPeer(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
defer cancel()
d, wan, lan := setupTier(ctx, t)
defer d.Close()
defer wan.Close()
defer lan.Close()
time.Sleep(5 * time.Millisecond)
p, err := d.FindPeer(ctx, lan.PeerID())
if err != nil {
t.Fatal(err)
}
assertUniqueMultiaddrs(t, p.Addrs)
p, err = d.FindPeer(ctx, wan.PeerID())
if err != nil {
t.Fatal(err)
}
assertUniqueMultiaddrs(t, p.Addrs)
}
func assertUniqueMultiaddrs(t *testing.T, addrs []multiaddr.Multiaddr) {
set := make(map[string]bool)
for _, addr := range addrs {
if set[string(addr.Bytes())] {
t.Errorf("duplicate address %s", addr)
}
set[string(addr.Bytes())] = true
}
}