// Copyright 2018 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package client
import (
"bytes"
"context"
"flag"
"fmt"
"math/rand"
"os"
"sync"
"testing"
"time"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/p2p/simulations"
"github.com/ethereum/go-ethereum/p2p/simulations/adapters"
"github.com/ethereum/go-ethereum/rpc"
"github.com/ethereum/go-ethereum/swarm/network"
"github.com/ethereum/go-ethereum/swarm/pss"
"github.com/ethereum/go-ethereum/swarm/state"
whisper "github.com/ethereum/go-ethereum/whisper/whisperv5"
)
type protoCtrl struct {
C chan bool
protocol *pss.Protocol
run func(*p2p.Peer, p2p.MsgReadWriter) error
}
var (
debugdebugflag = flag.Bool("vv", false, "veryverbose")
debugflag = flag.Bool("v", false, "verbose")
w *whisper.Whisper
wapi *whisper.PublicWhisperAPI
// custom logging
psslogmain log.Logger
pssprotocols map[string]*protoCtrl
sendLimit = uint16(256)
)
var services = newServices()
func init() {
flag.Parse()
rand.Seed(time.Now().Unix())
adapters.RegisterServices(services)
loglevel := log.LvlInfo
if *debugflag {
loglevel = log.LvlDebug
} else if *debugdebugflag {
loglevel = log.LvlTrace
}
psslogmain = log.New("psslog", "*")
hs := log.StreamHandler(os.Stderr, log.TerminalFormat(true))
hf := log.LvlFilterHandler(loglevel, hs)
h := log.CallerFileHandler(hf)
log.Root().SetHandler(h)
w = whisper.New(&whisper.DefaultConfig)
wapi = whisper.NewPublicWhisperAPI(w)
pssprotocols = make(map[string]*protoCtrl)
}
// ping pong exchange across one expired symkey
func TestClientHandshake(t *testing.T) {
sendLimit = 3
clients, err := setupNetwork(2)
if err != nil {
t.Fatal(err)
}
lpsc, err := NewClientWithRPC(clients[0])
if err != nil {
t.Fatal(err)
}
rpsc, err := NewClientWithRPC(clients[1])
if err != nil {
t.Fatal(err)
}
lpssping := &pss.Ping{
OutC: make(chan bool),
InC: make(chan bool),
Pong: false,
}
rpssping := &pss.Ping{
OutC: make(chan bool),
InC: make(chan bool),
Pong: false,
}
lproto := pss.NewPingProtocol(lpssping)
rproto := pss.NewPingProtocol(rpssping)
ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
defer cancel()
err = lpsc.RunProtocol(ctx, lproto)
if err != nil {
t.Fatal(err)
}
err = rpsc.RunProtocol(ctx, rproto)
if err != nil {
t.Fatal(err)
}
topic := pss.PingTopic.String()
var loaddr string
err = clients[0].Call(&loaddr, "pss_baseAddr")
if err != nil {
t.Fatalf("rpc get node 1 baseaddr fail: %v", err)
}
var roaddr string
err = clients[1].Call(&roaddr, "pss_baseAddr")
if err != nil {
t.Fatalf("rpc get node 2 baseaddr fail: %v", err)
}
var lpubkey string
err = clients[0].Call(&lpubkey, "pss_getPublicKey")
if err != nil {
t.Fatalf("rpc get node 1 pubkey fail: %v", err)
}
var rpubkey string
err = clients[1].Call(&rpubkey, "pss_getPublicKey")
if err != nil {
t.Fatalf("rpc get node 2 pubkey fail: %v", err)
}
err = clients[0].Call(nil, "pss_setPeerPublicKey", rpubkey, topic, roaddr)
if err != nil {
t.Fatal(err)
}
err = clients[1].Call(nil, "pss_setPeerPublicKey", lpubkey, topic, loaddr)
if err != nil {
t.Fatal(err)
}
time.Sleep(time.Second)
roaddrbytes, err := hexutil.Decode(roaddr)
if err != nil {
t.Fatal(err)
}
err = lpsc.AddPssPeer(rpubkey, roaddrbytes, pss.PingProtocol)
if err != nil {
t.Fatal(err)
}
time.Sleep(time.Second)
for i := uint16(0); i <= sendLimit; i++ {
lpssping.OutC <- false
got := <-rpssping.InC
log.Warn("ok", "idx", i, "got", got)
time.Sleep(time.Second)
}
rw := lpsc.peerPool[pss.PingTopic][rpubkey]
lpsc.RemovePssPeer(rpubkey, pss.PingProtocol)
if err := rw.WriteMsg(p2p.Msg{
Size: 3,
Payload: bytes.NewReader([]byte("foo")),
}); err == nil {
t.Fatalf("expected error on write")
}
}
func setupNetwork(numnodes int) (clients []*rpc.Client, err error) {
nodes := make([]*simulations.Node, numnodes)
clients = make([]*rpc.Client, numnodes)
if numnodes < 2 {
return nil, fmt.Errorf("Minimum two nodes in network")
}
adapter := adapters.NewSimAdapter(services)
net := simulations.NewNetwork(adapter, &simulations.NetworkConfig{
ID: "0",
DefaultService: "bzz",
})
for i := 0; i < numnodes; i++ {
nodeconf := adapters.RandomNodeConfig()
nodeconf.Services = []string{"bzz", "pss"}
nodes[i], err = net.NewNodeWithConfig(nodeconf)
if err != nil {
return nil, fmt.Errorf("error creating node 1: %v", err)
}
err = net.Start(nodes[i].ID())
if err != nil {
return nil, fmt.Errorf("error starting node 1: %v", err)
}
if i > 0 {
err = net.Connect(nodes[i].ID(), nodes[i-1].ID())
if err != nil {
return nil, fmt.Errorf("error connecting nodes: %v", err)
}
}
clients[i], err = nodes[i].Client()
if err != nil {
return nil, fmt.Errorf("create node 1 rpc client fail: %v", err)
}
}
if numnodes > 2 {
err = net.Connect(nodes[0].ID(), nodes[len(nodes)-1].ID())
if err != nil {
return nil, fmt.Errorf("error connecting first and last nodes")
}
}
return clients, nil
}
func newServices() adapters.Services {
stateStore := state.NewInmemoryStore()
kademlias := make(map[enode.ID]*network.Kademlia)
kademlia := func(id enode.ID) *network.Kademlia {
if k, ok := kademlias[id]; ok {
return k
}
params := network.NewKadParams()
params.MinProxBinSize = 2
params.MaxBinSize = 3
params.MinBinSize = 1
params.MaxRetries = 1000
params.RetryExponent = 2
params.RetryInterval = 1000000
kademlias[id] = network.NewKademlia(id[:], params)
return kademlias[id]
}
return adapters.Services{
"pss": func(ctx *adapters.ServiceContext) (node.Service, error) {
ctxlocal, cancel := context.WithTimeout(context.Background(), time.Second)
defer cancel()
keys, err := wapi.NewKeyPair(ctxlocal)
privkey, err := w.GetPrivateKey(keys)
psparams := pss.NewPssParams().WithPrivateKey(privkey)
pskad := kademlia(ctx.Config.ID)
ps, err := pss.NewPss(pskad, psparams)
if err != nil {
return nil, err
}
pshparams := pss.NewHandshakeParams()
pshparams.SymKeySendLimit = sendLimit
err = pss.SetHandshakeController(ps, pshparams)
if err != nil {
return nil, fmt.Errorf("handshake controller fail: %v", err)
}
return ps, nil
},
"bzz": func(ctx *adapters.ServiceContext) (node.Service, error) {
addr := network.NewAddr(ctx.Config.Node())
hp := network.NewHiveParams()
hp.Discovery = false
config := &network.BzzConfig{
OverlayAddr: addr.Over(),
UnderlayAddr: addr.Under(),
HiveParams: hp,
}
return network.NewBzz(config, kademlia(ctx.Config.ID), stateStore, nil, nil), nil
},
}
}
// copied from swarm/network/protocol_test_go
type testStore struct {
sync.Mutex
values map[string][]byte
}
func newTestStore() *testStore {
return &testStore{values: make(map[string][]byte)}
}
func (t *testStore) Load(key string) ([]byte, error) {
return nil, nil
}
func (t *testStore) Save(key string, v []byte) error {
return nil
}
