neo-go/pkg/network/server_test.go
Anna Shaleva dc3d1300dd *: replace go.uber.org/atomic with sync/atomic
Use sync/atomic everywhere and exclude go.uber.org/atomic from go.mod.
Close #2626.

Signed-off-by: Anna Shaleva <shaleva.ann@nspcc.ru>
2023-10-12 17:59:34 +03:00

1151 lines
35 KiB
Go

package network
import (
"errors"
"fmt"
"math/big"
"net"
"strconv"
"sync"
"sync/atomic"
"testing"
"time"
"github.com/nspcc-dev/neo-go/internal/fakechain"
"github.com/nspcc-dev/neo-go/internal/random"
"github.com/nspcc-dev/neo-go/pkg/config"
"github.com/nspcc-dev/neo-go/pkg/consensus"
"github.com/nspcc-dev/neo-go/pkg/core"
"github.com/nspcc-dev/neo-go/pkg/core/block"
"github.com/nspcc-dev/neo-go/pkg/core/interop"
"github.com/nspcc-dev/neo-go/pkg/core/mpt"
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/network/capability"
"github.com/nspcc-dev/neo-go/pkg/network/payload"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.uber.org/zap/zaptest"
)
type fakeConsensus struct {
started atomic.Bool
stopped atomic.Bool
payloads []*payload.Extensible
txlock sync.Mutex
txs []*transaction.Transaction
}
var _ consensus.Service = (*fakeConsensus)(nil)
func (f *fakeConsensus) Name() string { return "fake" }
func (f *fakeConsensus) Start() { f.started.Store(true) }
func (f *fakeConsensus) Shutdown() { f.stopped.Store(true) }
func (f *fakeConsensus) OnPayload(p *payload.Extensible) error {
f.payloads = append(f.payloads, p)
return nil
}
func (f *fakeConsensus) OnTransaction(tx *transaction.Transaction) {
f.txlock.Lock()
defer f.txlock.Unlock()
f.txs = append(f.txs, tx)
}
func (f *fakeConsensus) GetPayload(h util.Uint256) *payload.Extensible { panic("implement me") }
func TestNewServer(t *testing.T) {
bc := &fakechain.FakeChain{Blockchain: config.Blockchain{
ProtocolConfiguration: config.ProtocolConfiguration{
P2PStateExchangeExtensions: true,
StateRootInHeader: true,
}}}
s, err := newServerFromConstructors(ServerConfig{}, bc, new(fakechain.FakeStateSync), nil, newFakeTransp, newTestDiscovery)
require.Error(t, err)
t.Run("set defaults", func(t *testing.T) {
s = newTestServer(t, ServerConfig{MinPeers: -1})
require.True(t, s.ID() != 0)
require.Equal(t, defaultMinPeers, s.ServerConfig.MinPeers)
require.Equal(t, defaultMaxPeers, s.ServerConfig.MaxPeers)
require.Equal(t, defaultAttemptConnPeers, s.ServerConfig.AttemptConnPeers)
})
t.Run("don't defaults", func(t *testing.T) {
cfg := ServerConfig{
MinPeers: 1,
MaxPeers: 2,
AttemptConnPeers: 3,
}
s = newTestServer(t, cfg)
require.True(t, s.ID() != 0)
require.Equal(t, 1, s.ServerConfig.MinPeers)
require.Equal(t, 2, s.ServerConfig.MaxPeers)
require.Equal(t, 3, s.ServerConfig.AttemptConnPeers)
})
}
func TestServerStartAndShutdown(t *testing.T) {
t.Run("no consensus", func(t *testing.T) {
s := newTestServer(t, ServerConfig{})
go s.Start()
p := newLocalPeer(t, s)
s.register <- p
require.Eventually(t, func() bool { return 1 == s.PeerCount() }, time.Second, time.Millisecond*10)
assert.True(t, s.transports[0].(*fakeTransp).started.Load())
assert.Nil(t, s.txCallback)
s.Shutdown()
require.True(t, s.transports[0].(*fakeTransp).closed.Load())
err, ok := p.droppedWith.Load().(error)
require.True(t, ok)
require.ErrorIs(t, err, errServerShutdown)
})
t.Run("with consensus", func(t *testing.T) {
s := newTestServer(t, ServerConfig{})
cons := new(fakeConsensus)
s.AddConsensusService(cons, cons.OnPayload, cons.OnTransaction)
go s.Start()
p := newLocalPeer(t, s)
s.register <- p
assert.True(t, s.services["fake"].(*fakeConsensus).started.Load())
s.Shutdown()
require.True(t, s.services["fake"].(*fakeConsensus).stopped.Load())
})
}
func TestServerRegisterPeer(t *testing.T) {
const peerCount = 3
s := newTestServer(t, ServerConfig{MaxPeers: 2})
ps := make([]*localPeer, peerCount)
for i := range ps {
ps[i] = newLocalPeer(t, s)
ps[i].netaddr.Port = i + 1
ps[i].version = &payload.Version{Nonce: uint32(i), UserAgent: []byte("fake")}
}
startWithCleanup(t, s)
s.register <- ps[0]
require.Eventually(t, func() bool { return 1 == s.PeerCount() }, time.Second, time.Millisecond*10)
s.handshake <- ps[0]
s.register <- ps[1]
s.handshake <- ps[1]
require.Eventually(t, func() bool { return 2 == s.PeerCount() }, time.Second, time.Millisecond*10)
require.Equal(t, 0, len(s.discovery.UnconnectedPeers()))
s.register <- ps[2]
require.Eventually(t, func() bool { return len(s.discovery.UnconnectedPeers()) > 0 }, time.Second, time.Millisecond*100)
index := -1
addrs := s.discovery.UnconnectedPeers()
for _, addr := range addrs {
for j := range ps {
if ps[j].PeerAddr().String() == addr {
index = j
break
}
}
}
require.True(t, index >= 0)
err, ok := ps[index].droppedWith.Load().(error)
require.True(t, ok)
require.ErrorIs(t, err, errMaxPeers)
index = (index + 1) % peerCount
s.unregister <- peerDrop{ps[index], errIdenticalID}
require.Eventually(t, func() bool {
bad := s.BadPeers()
for i := range bad {
if bad[i] == ps[index].PeerAddr().String() {
return true
}
}
return false
}, time.Second, time.Millisecond*50)
}
func TestGetBlocksByIndex(t *testing.T) {
testGetBlocksByIndex(t, CMDGetBlockByIndex)
}
func testGetBlocksByIndex(t *testing.T, cmd CommandType) {
s := newTestServer(t, ServerConfig{UserAgent: "/test/"})
start := s.chain.BlockHeight()
if cmd == CMDGetHeaders {
start = s.chain.HeaderHeight()
s.stateSync.(*fakechain.FakeStateSync).RequestHeaders.Store(true)
}
ps := make([]*localPeer, 10)
expectsCmd := make([]CommandType, 10)
expectedHeight := make([][]uint32, 10)
for i := range ps {
i := i
ps[i] = newLocalPeer(t, s)
ps[i].messageHandler = func(t *testing.T, msg *Message) {
require.Equal(t, expectsCmd[i], msg.Command)
if expectsCmd[i] == cmd {
p, ok := msg.Payload.(*payload.GetBlockByIndex)
require.True(t, ok)
require.Contains(t, expectedHeight[i], p.IndexStart)
expectsCmd[i] = CMDPong
} else if expectsCmd[i] == CMDPong {
expectsCmd[i] = cmd
}
}
expectsCmd[i] = cmd
expectedHeight[i] = []uint32{start + 1}
}
go s.transports[0].Accept()
nonce := uint32(0)
checkPingRespond := func(t *testing.T, peerIndex int, peerHeight uint32, hs ...uint32) {
nonce++
expectedHeight[peerIndex] = hs
require.NoError(t, s.handlePing(ps[peerIndex], payload.NewPing(peerHeight, nonce)))
}
// Send all requests for all chunks.
checkPingRespond(t, 0, 5000, 1)
checkPingRespond(t, 1, 5000, 1+payload.MaxHashesCount)
checkPingRespond(t, 2, 5000, 1+2*payload.MaxHashesCount)
checkPingRespond(t, 3, 5000, 1+3*payload.MaxHashesCount)
// Receive some blocks.
s.chain.(*fakechain.FakeChain).Blockheight.Store(2123)
// Minimum chunk has priority.
checkPingRespond(t, 5, 5000, 2124)
checkPingRespond(t, 6, 5000, 2624)
// Request minimal height for peers behind.
checkPingRespond(t, 7, 3100, 2124)
checkPingRespond(t, 8, 5000, 3124)
checkPingRespond(t, 9, 5000, 3624)
// Request random height after that.
checkPingRespond(t, 1, 5000, 2124, 2624, 3124, 3624)
checkPingRespond(t, 2, 5000, 2124, 2624, 3124, 3624)
checkPingRespond(t, 3, 5000, 2124, 2624, 3124, 3624)
}
func TestSendVersion(t *testing.T) {
var (
s = newTestServer(t, ServerConfig{UserAgent: "/test/"})
p = newLocalPeer(t, s)
)
// we need to set listener at least to handle dynamic port correctly
s.transports[0].Accept()
p.messageHandler = func(t *testing.T, msg *Message) {
// listener is already set, so Addresses(nil) gives us proper address with port
_, prt := s.transports[0].HostPort()
port, err := strconv.ParseUint(prt, 10, 16)
assert.NoError(t, err)
assert.Equal(t, CMDVersion, msg.Command)
assert.IsType(t, msg.Payload, &payload.Version{})
version := msg.Payload.(*payload.Version)
assert.NotZero(t, version.Nonce)
assert.Equal(t, 1, len(version.Capabilities))
assert.ElementsMatch(t, []capability.Capability{
{
Type: capability.TCPServer,
Data: &capability.Server{
Port: uint16(port),
},
},
}, version.Capabilities)
assert.Equal(t, uint32(0), version.Version)
assert.Equal(t, []byte("/test/"), version.UserAgent)
}
require.NoError(t, p.SendVersion())
}
// Server should reply with a verack after receiving a valid version.
func TestVerackAfterHandleVersionCmd(t *testing.T) {
var (
s = newTestServer(t, ServerConfig{})
p = newLocalPeer(t, s)
)
na, _ := net.ResolveTCPAddr("tcp", "0.0.0.0:3000")
p.netaddr = *na
// Should have a verack
p.messageHandler = func(t *testing.T, msg *Message) {
assert.Equal(t, CMDVerack, msg.Command)
}
capabilities := []capability.Capability{
{
Type: capability.FullNode,
Data: &capability.Node{
StartHeight: 0,
},
},
{
Type: capability.TCPServer,
Data: &capability.Server{
Port: 3000,
},
},
}
version := payload.NewVersion(0, 1337, "/NEO-GO/", capabilities)
require.NoError(t, s.handleVersionCmd(p, version))
}
// Server should not reply with a verack after receiving a
// invalid version and disconnects the peer.
func TestServerNotSendsVerack(t *testing.T) {
var (
s = newTestServer(t, ServerConfig{MaxPeers: 10, Net: 56753})
p = newLocalPeer(t, s)
p2 = newLocalPeer(t, s)
)
s.id = 1
finished := make(chan struct{})
go func() {
s.run()
close(finished)
}()
t.Cleanup(func() {
// close via quit as server was started via `run()`, not `Start()`
close(s.quit)
<-finished
})
na, _ := net.ResolveTCPAddr("tcp", "0.0.0.0:3000")
p.netaddr = *na
p2.netaddr = *na
s.register <- p
capabilities := []capability.Capability{
{
Type: capability.FullNode,
Data: &capability.Node{
StartHeight: 0,
},
},
{
Type: capability.TCPServer,
Data: &capability.Server{
Port: 3000,
},
},
}
// identical id's
version := payload.NewVersion(56753, 1, "/NEO-GO/", capabilities)
err := s.handleVersionCmd(p, version)
assert.NotNil(t, err)
assert.Equal(t, errIdenticalID, err)
// Different IDs, but also different magics
version.Nonce = 2
version.Magic = 56752
err = s.handleVersionCmd(p, version)
assert.NotNil(t, err)
assert.Equal(t, errInvalidNetwork, err)
// Different IDs and same network, make handshake pass.
version.Magic = 56753
require.NoError(t, s.handleVersionCmd(p, version))
require.NoError(t, p.HandleVersionAck())
require.Equal(t, true, p.Handshaked())
// Second handshake from the same peer should fail.
s.register <- p2
err = s.handleVersionCmd(p2, version)
assert.NotNil(t, err)
require.Equal(t, errAlreadyConnected, err)
}
func (s *Server) testHandleMessage(t *testing.T, p Peer, cmd CommandType, pl payload.Payload) *Server {
if p == nil {
p = newLocalPeer(t, s)
p.(*localPeer).handshaked = 1
}
msg := NewMessage(cmd, pl)
require.NoError(t, s.handleMessage(p, msg))
return s
}
func startTestServer(t *testing.T, protocolCfg ...func(*config.Blockchain)) *Server {
var s *Server
srvCfg := ServerConfig{UserAgent: "/test/"}
if protocolCfg != nil {
s = newTestServerWithCustomCfg(t, srvCfg, protocolCfg[0])
} else {
s = newTestServer(t, srvCfg)
}
startWithCleanup(t, s)
return s
}
func startWithCleanup(t *testing.T, s *Server) {
go s.Start()
t.Cleanup(func() {
s.Shutdown()
})
}
func TestBlock(t *testing.T) {
s := startTestServer(t)
s.chain.(*fakechain.FakeChain).Blockheight.Store(12344)
require.Equal(t, uint32(12344), s.chain.BlockHeight())
b := block.New(false)
b.Index = 12345
s.testHandleMessage(t, nil, CMDBlock, b)
require.Eventually(t, func() bool { return s.chain.BlockHeight() == 12345 }, 2*time.Second, time.Millisecond*500)
}
func TestConsensus(t *testing.T) {
s := newTestServer(t, ServerConfig{})
cons := new(fakeConsensus)
s.AddConsensusService(cons, cons.OnPayload, cons.OnTransaction)
startWithCleanup(t, s)
s.chain.(*fakechain.FakeChain).Blockheight.Store(4)
p := newLocalPeer(t, s)
p.handshaked = 1
s.register <- p
require.Eventually(t, func() bool { return 1 == s.PeerCount() }, time.Second, time.Millisecond*10)
newConsensusMessage := func(start, end uint32) *Message {
pl := payload.NewExtensible()
pl.Category = payload.ConsensusCategory
pl.ValidBlockStart = start
pl.ValidBlockEnd = end
return NewMessage(CMDExtensible, pl)
}
s.chain.(*fakechain.FakeChain).VerifyWitnessF = func() (int64, error) { return 0, errors.New("invalid") }
msg := newConsensusMessage(0, s.chain.BlockHeight()+1)
require.Error(t, s.handleMessage(p, msg))
s.chain.(*fakechain.FakeChain).VerifyWitnessF = func() (int64, error) { return 0, nil }
require.NoError(t, s.handleMessage(p, msg))
require.Contains(t, s.services["fake"].(*fakeConsensus).payloads, msg.Payload.(*payload.Extensible))
t.Run("small ValidUntilBlockEnd", func(t *testing.T) {
t.Run("current height", func(t *testing.T) {
msg := newConsensusMessage(0, s.chain.BlockHeight())
require.NoError(t, s.handleMessage(p, msg))
require.NotContains(t, s.services["fake"].(*fakeConsensus).payloads, msg.Payload.(*payload.Extensible))
})
t.Run("invalid", func(t *testing.T) {
msg := newConsensusMessage(0, s.chain.BlockHeight()-1)
require.Error(t, s.handleMessage(p, msg))
})
})
t.Run("big ValidUntiLBlockStart", func(t *testing.T) {
msg := newConsensusMessage(s.chain.BlockHeight()+1, s.chain.BlockHeight()+2)
require.Error(t, s.handleMessage(p, msg))
})
}
func TestTransaction(t *testing.T) {
s := newTestServer(t, ServerConfig{})
cons := new(fakeConsensus)
s.AddConsensusService(cons, cons.OnPayload, cons.OnTransaction)
startWithCleanup(t, s)
t.Run("good", func(t *testing.T) {
tx := newDummyTx()
s.RequestTx(tx.Hash())
p := newLocalPeer(t, s)
p.isFullNode = true
p.messageHandler = func(t *testing.T, msg *Message) {
if msg.Command == CMDInv {
inv := msg.Payload.(*payload.Inventory)
require.Equal(t, payload.TXType, inv.Type)
require.Equal(t, []util.Uint256{tx.Hash()}, inv.Hashes)
}
}
s.register <- p
s.testHandleMessage(t, nil, CMDTX, tx)
require.Eventually(t, func() bool {
var fake = s.services["fake"].(*fakeConsensus)
fake.txlock.Lock()
defer fake.txlock.Unlock()
for _, t := range fake.txs {
if t == tx {
return true
}
}
return false
}, 2*time.Second, time.Millisecond*500)
})
t.Run("bad", func(t *testing.T) {
tx := newDummyTx()
s.RequestTx(tx.Hash())
s.chain.(*fakechain.FakeChain).PoolTxF = func(*transaction.Transaction) error { return core.ErrInsufficientFunds }
s.testHandleMessage(t, nil, CMDTX, tx)
require.Eventually(t, func() bool {
var fake = s.services["fake"].(*fakeConsensus)
fake.txlock.Lock()
defer fake.txlock.Unlock()
for _, t := range fake.txs {
if t == tx {
return true
}
}
return false
}, 2*time.Second, time.Millisecond*500)
})
}
func (s *Server) testHandleGetData(t *testing.T, invType payload.InventoryType, hs, notFound []util.Uint256, found payload.Payload) {
var recvResponse atomic.Bool
var recvNotFound atomic.Bool
p := newLocalPeer(t, s)
p.handshaked = 1
p.messageHandler = func(t *testing.T, msg *Message) {
switch msg.Command {
case CMDTX, CMDBlock, CMDExtensible, CMDP2PNotaryRequest:
require.Equal(t, found, msg.Payload)
recvResponse.Store(true)
case CMDNotFound:
require.Equal(t, notFound, msg.Payload.(*payload.Inventory).Hashes)
recvNotFound.Store(true)
}
}
s.testHandleMessage(t, p, CMDGetData, payload.NewInventory(invType, hs))
require.Eventually(t, func() bool { return recvResponse.Load() }, 2*time.Second, time.Millisecond)
require.Eventually(t, func() bool { return recvNotFound.Load() }, 2*time.Second, time.Millisecond)
}
func TestGetData(t *testing.T) {
s := startTestServer(t)
s.chain.(*fakechain.FakeChain).UtilityTokenBalance = big.NewInt(1000000)
t.Run("block", func(t *testing.T) {
b := newDummyBlock(2, 0)
hs := []util.Uint256{random.Uint256(), b.Hash(), random.Uint256()}
s.chain.(*fakechain.FakeChain).PutBlock(b)
notFound := []util.Uint256{hs[0], hs[2]}
s.testHandleGetData(t, payload.BlockType, hs, notFound, b)
})
t.Run("transaction", func(t *testing.T) {
tx := newDummyTx()
hs := []util.Uint256{random.Uint256(), tx.Hash(), random.Uint256()}
s.chain.(*fakechain.FakeChain).PutTx(tx)
notFound := []util.Uint256{hs[0], hs[2]}
s.testHandleGetData(t, payload.TXType, hs, notFound, tx)
})
t.Run("p2pNotaryRequest", func(t *testing.T) {
mainTx := &transaction.Transaction{
Attributes: []transaction.Attribute{{Type: transaction.NotaryAssistedT, Value: &transaction.NotaryAssisted{NKeys: 1}}},
Script: []byte{0, 1, 2},
ValidUntilBlock: 123,
Signers: []transaction.Signer{{Account: random.Uint160()}},
Scripts: []transaction.Witness{{InvocationScript: []byte{1, 2, 3}, VerificationScript: []byte{1, 2, 3}}},
}
mainTx.Size()
mainTx.Hash()
fallbackTx := &transaction.Transaction{
Script: []byte{1, 2, 3},
ValidUntilBlock: 123,
Attributes: []transaction.Attribute{
{Type: transaction.NotValidBeforeT, Value: &transaction.NotValidBefore{Height: 123}},
{Type: transaction.ConflictsT, Value: &transaction.Conflicts{Hash: mainTx.Hash()}},
{Type: transaction.NotaryAssistedT, Value: &transaction.NotaryAssisted{NKeys: 0}},
},
Signers: []transaction.Signer{{Account: random.Uint160()}, {Account: random.Uint160()}},
Scripts: []transaction.Witness{{InvocationScript: append([]byte{byte(opcode.PUSHDATA1), keys.SignatureLen}, make([]byte, keys.SignatureLen)...), VerificationScript: make([]byte, 0)}, {InvocationScript: []byte{}, VerificationScript: []byte{}}},
}
fallbackTx.Size()
fallbackTx.Hash()
r := &payload.P2PNotaryRequest{
MainTransaction: mainTx,
FallbackTransaction: fallbackTx,
Witness: transaction.Witness{
InvocationScript: []byte{1, 2, 3},
VerificationScript: []byte{1, 2, 3},
},
}
r.Hash()
require.NoError(t, s.notaryRequestPool.Add(r.FallbackTransaction, s.chain, r))
hs := []util.Uint256{random.Uint256(), r.FallbackTransaction.Hash(), random.Uint256()}
notFound := []util.Uint256{hs[0], hs[2]}
s.testHandleGetData(t, payload.P2PNotaryRequestType, hs, notFound, r)
})
}
func initGetBlocksTest(t *testing.T) (*Server, []*block.Block) {
s := startTestServer(t)
var blocks []*block.Block
for i := uint32(12); i <= 15; i++ {
b := newDummyBlock(i, 3)
s.chain.(*fakechain.FakeChain).PutBlock(b)
blocks = append(blocks, b)
}
return s, blocks
}
func TestGetBlocks(t *testing.T) {
s, blocks := initGetBlocksTest(t)
expected := make([]util.Uint256, len(blocks))
for i := range blocks {
expected[i] = blocks[i].Hash()
}
var actual []util.Uint256
p := newLocalPeer(t, s)
p.handshaked = 1
p.messageHandler = func(t *testing.T, msg *Message) {
if msg.Command == CMDInv {
actual = msg.Payload.(*payload.Inventory).Hashes
}
}
t.Run("2", func(t *testing.T) {
s.testHandleMessage(t, p, CMDGetBlocks, &payload.GetBlocks{HashStart: expected[0], Count: 2})
require.Equal(t, expected[1:3], actual)
})
t.Run("-1", func(t *testing.T) {
s.testHandleMessage(t, p, CMDGetBlocks, &payload.GetBlocks{HashStart: expected[0], Count: -1})
require.Equal(t, expected[1:], actual)
})
t.Run("invalid start", func(t *testing.T) {
msg := NewMessage(CMDGetBlocks, &payload.GetBlocks{HashStart: util.Uint256{}, Count: -1})
require.Error(t, s.handleMessage(p, msg))
})
}
func TestGetBlockByIndex(t *testing.T) {
s, blocks := initGetBlocksTest(t)
var expected []*block.Block
var actual []*block.Block
p := newLocalPeer(t, s)
p.handshaked = 1
p.messageHandler = func(t *testing.T, msg *Message) {
if msg.Command == CMDBlock {
actual = append(actual, msg.Payload.(*block.Block))
if len(actual) == len(expected) {
require.Equal(t, expected, actual)
}
}
}
t.Run("2", func(t *testing.T) {
actual = nil
expected = blocks[:2]
s.testHandleMessage(t, p, CMDGetBlockByIndex, &payload.GetBlockByIndex{IndexStart: blocks[0].Index, Count: 2})
})
t.Run("-1", func(t *testing.T) {
actual = nil
expected = blocks
s.testHandleMessage(t, p, CMDGetBlockByIndex, &payload.GetBlockByIndex{IndexStart: blocks[0].Index, Count: -1})
})
t.Run("-1, last header", func(t *testing.T) {
s.chain.(*fakechain.FakeChain).PutHeader(newDummyBlock(16, 2))
actual = nil
expected = blocks
s.testHandleMessage(t, p, CMDGetBlockByIndex, &payload.GetBlockByIndex{IndexStart: blocks[0].Index, Count: -1})
})
}
func TestGetHeaders(t *testing.T) {
s, blocks := initGetBlocksTest(t)
expected := make([]*block.Header, len(blocks))
for i := range blocks {
expected[i] = &blocks[i].Header
}
var actual *payload.Headers
p := newLocalPeer(t, s)
p.handshaked = 1
p.messageHandler = func(t *testing.T, msg *Message) {
if msg.Command == CMDHeaders {
actual = msg.Payload.(*payload.Headers)
}
}
t.Run("2", func(t *testing.T) {
actual = nil
s.testHandleMessage(t, p, CMDGetHeaders, &payload.GetBlockByIndex{IndexStart: blocks[0].Index, Count: 2})
require.Equal(t, expected[:2], actual.Hdrs)
})
t.Run("more, than we have", func(t *testing.T) {
actual = nil
s.testHandleMessage(t, p, CMDGetHeaders, &payload.GetBlockByIndex{IndexStart: blocks[0].Index, Count: 10})
require.Equal(t, expected, actual.Hdrs)
})
t.Run("-1", func(t *testing.T) {
actual = nil
s.testHandleMessage(t, p, CMDGetHeaders, &payload.GetBlockByIndex{IndexStart: blocks[0].Index, Count: -1})
require.Equal(t, expected, actual.Hdrs)
})
t.Run("no headers", func(t *testing.T) {
actual = nil
s.testHandleMessage(t, p, CMDGetHeaders, &payload.GetBlockByIndex{IndexStart: 123, Count: -1})
require.Nil(t, actual)
})
t.Run("distribute requests between peers", func(t *testing.T) {
testGetBlocksByIndex(t, CMDGetHeaders)
})
}
func TestInv(t *testing.T) {
s := startTestServer(t)
s.chain.(*fakechain.FakeChain).UtilityTokenBalance = big.NewInt(10000000)
var actual []util.Uint256
p := newLocalPeer(t, s)
p.handshaked = 1
p.messageHandler = func(t *testing.T, msg *Message) {
if msg.Command == CMDGetData {
actual = msg.Payload.(*payload.Inventory).Hashes
}
}
t.Run("blocks", func(t *testing.T) {
b := newDummyBlock(10, 3)
s.chain.(*fakechain.FakeChain).PutBlock(b)
hs := []util.Uint256{random.Uint256(), b.Hash(), random.Uint256()}
s.testHandleMessage(t, p, CMDInv, &payload.Inventory{
Type: payload.BlockType,
Hashes: hs,
})
require.Equal(t, []util.Uint256{hs[0], hs[2]}, actual)
})
t.Run("transaction", func(t *testing.T) {
tx := newDummyTx()
require.NoError(t, s.chain.GetMemPool().Add(tx, s.chain))
hs := []util.Uint256{random.Uint256(), tx.Hash(), random.Uint256()}
s.testHandleMessage(t, p, CMDInv, &payload.Inventory{
Type: payload.TXType,
Hashes: hs,
})
require.Equal(t, []util.Uint256{hs[0], hs[2]}, actual)
})
t.Run("extensible", func(t *testing.T) {
ep := payload.NewExtensible()
s.chain.(*fakechain.FakeChain).VerifyWitnessF = func() (int64, error) { return 0, nil }
ep.ValidBlockEnd = s.chain.(*fakechain.FakeChain).BlockHeight() + 1
ok, err := s.extensiblePool.Add(ep)
require.NoError(t, err)
require.True(t, ok)
s.testHandleMessage(t, p, CMDInv, &payload.Inventory{
Type: payload.ExtensibleType,
Hashes: []util.Uint256{ep.Hash()},
})
})
t.Run("p2pNotaryRequest", func(t *testing.T) {
fallbackTx := transaction.New(random.Bytes(100), 123)
fallbackTx.Signers = []transaction.Signer{{Account: random.Uint160()}, {Account: random.Uint160()}}
fallbackTx.Size()
fallbackTx.Hash()
r := &payload.P2PNotaryRequest{
MainTransaction: newDummyTx(),
FallbackTransaction: fallbackTx,
}
require.NoError(t, s.notaryRequestPool.Add(r.FallbackTransaction, s.chain, r))
hs := []util.Uint256{random.Uint256(), r.FallbackTransaction.Hash(), random.Uint256()}
s.testHandleMessage(t, p, CMDInv, &payload.Inventory{
Type: payload.P2PNotaryRequestType,
Hashes: hs,
})
require.Equal(t, []util.Uint256{hs[0], hs[2]}, actual)
})
}
func TestHandleGetMPTData(t *testing.T) {
t.Run("P2PStateExchange extensions off", func(t *testing.T) {
s := startTestServer(t)
p := newLocalPeer(t, s)
p.handshaked = 1
msg := NewMessage(CMDGetMPTData, &payload.MPTInventory{
Hashes: []util.Uint256{{1, 2, 3}},
})
require.Error(t, s.handleMessage(p, msg))
})
check := func(t *testing.T, s *Server) {
var recvResponse atomic.Bool
r1 := random.Uint256()
r2 := random.Uint256()
r3 := random.Uint256()
node := []byte{1, 2, 3}
s.stateSync.(*fakechain.FakeStateSync).TraverseFunc = func(root util.Uint256, process func(node mpt.Node, nodeBytes []byte) bool) error {
if !(root.Equals(r1) || root.Equals(r2)) {
t.Fatal("unexpected root")
}
require.False(t, process(mpt.NewHashNode(r3), node))
return nil
}
found := &payload.MPTData{
Nodes: [][]byte{node}, // no duplicates expected
}
p := newLocalPeer(t, s)
p.handshaked = 1
p.messageHandler = func(t *testing.T, msg *Message) {
switch msg.Command {
case CMDMPTData:
require.Equal(t, found, msg.Payload)
recvResponse.Store(true)
}
}
hs := []util.Uint256{r1, r2}
s.testHandleMessage(t, p, CMDGetMPTData, payload.NewMPTInventory(hs))
require.Eventually(t, recvResponse.Load, time.Second, time.Millisecond)
}
t.Run("KeepOnlyLatestState on", func(t *testing.T) {
s := startTestServer(t, func(c *config.Blockchain) {
c.P2PStateExchangeExtensions = true
c.Ledger.KeepOnlyLatestState = true
})
check(t, s)
})
t.Run("good", func(t *testing.T) {
s := startTestServer(t, func(c *config.Blockchain) {
c.P2PStateExchangeExtensions = true
})
check(t, s)
})
}
func TestHandleMPTData(t *testing.T) {
t.Run("P2PStateExchange extensions off", func(t *testing.T) {
s := startTestServer(t)
p := newLocalPeer(t, s)
p.handshaked = 1
msg := NewMessage(CMDMPTData, &payload.MPTData{
Nodes: [][]byte{{1, 2, 3}},
})
require.Error(t, s.handleMessage(p, msg))
})
t.Run("good", func(t *testing.T) {
expected := [][]byte{{1, 2, 3}, {2, 3, 4}}
s := newTestServer(t, ServerConfig{UserAgent: "/test/"})
s.config.P2PStateExchangeExtensions = true
s.stateSync = &fakechain.FakeStateSync{
AddMPTNodesFunc: func(nodes [][]byte) error {
require.Equal(t, expected, nodes)
return nil
},
}
startWithCleanup(t, s)
p := newLocalPeer(t, s)
p.handshaked = 1
msg := NewMessage(CMDMPTData, &payload.MPTData{
Nodes: expected,
})
require.NoError(t, s.handleMessage(p, msg))
})
}
func TestRequestMPTNodes(t *testing.T) {
s := startTestServer(t)
var actual []util.Uint256
p := newLocalPeer(t, s)
p.handshaked = 1
p.messageHandler = func(t *testing.T, msg *Message) {
if msg.Command == CMDGetMPTData {
actual = append(actual, msg.Payload.(*payload.MPTInventory).Hashes...)
}
}
s.register <- p
s.register <- p // ensure previous send was handled
t.Run("no hashes, no message", func(t *testing.T) {
actual = nil
require.NoError(t, s.requestMPTNodes(p, nil))
require.Nil(t, actual)
})
t.Run("good, small", func(t *testing.T) {
actual = nil
expected := []util.Uint256{random.Uint256(), random.Uint256()}
require.NoError(t, s.requestMPTNodes(p, expected))
require.Equal(t, expected, actual)
})
t.Run("good, exactly one chunk", func(t *testing.T) {
actual = nil
expected := make([]util.Uint256, payload.MaxMPTHashesCount)
for i := range expected {
expected[i] = random.Uint256()
}
require.NoError(t, s.requestMPTNodes(p, expected))
require.Equal(t, expected, actual)
})
t.Run("good, too large chunk", func(t *testing.T) {
actual = nil
expected := make([]util.Uint256, payload.MaxMPTHashesCount+1)
for i := range expected {
expected[i] = random.Uint256()
}
require.NoError(t, s.requestMPTNodes(p, expected))
require.Equal(t, expected[:payload.MaxMPTHashesCount], actual)
})
}
func TestRequestTx(t *testing.T) {
s := startTestServer(t)
var actual []util.Uint256
p := newLocalPeer(t, s)
p.handshaked = 1
p.messageHandler = func(t *testing.T, msg *Message) {
if msg.Command == CMDGetData {
actual = append(actual, msg.Payload.(*payload.Inventory).Hashes...)
}
}
s.register <- p
s.register <- p // ensure previous send was handled
t.Run("no hashes, no message", func(t *testing.T) {
actual = nil
s.RequestTx()
require.Nil(t, actual)
})
t.Run("good, small", func(t *testing.T) {
actual = nil
expected := []util.Uint256{random.Uint256(), random.Uint256()}
s.RequestTx(expected...)
require.Equal(t, expected, actual)
})
t.Run("good, exactly one chunk", func(t *testing.T) {
actual = nil
expected := make([]util.Uint256, payload.MaxHashesCount)
for i := range expected {
expected[i] = random.Uint256()
}
s.RequestTx(expected...)
require.Equal(t, expected, actual)
})
t.Run("good, multiple chunks", func(t *testing.T) {
actual = nil
expected := make([]util.Uint256, payload.MaxHashesCount*2+payload.MaxHashesCount/2)
for i := range expected {
expected[i] = random.Uint256()
}
s.RequestTx(expected...)
require.Equal(t, expected, actual)
})
}
func TestAddrs(t *testing.T) {
s := startTestServer(t)
ips := make([][16]byte, 4)
copy(ips[0][:], net.IPv4(1, 2, 3, 4))
copy(ips[1][:], net.IPv4(7, 8, 9, 0))
for i := range ips[2] {
ips[2][i] = byte(i)
}
p := newLocalPeer(t, s)
p.handshaked = 1
p.getAddrSent = 1
pl := &payload.AddressList{
Addrs: []*payload.AddressAndTime{
{
IP: ips[0],
Capabilities: capability.Capabilities{{
Type: capability.TCPServer,
Data: &capability.Server{Port: 12},
}},
},
{
IP: ips[1],
Capabilities: capability.Capabilities{},
},
{
IP: ips[2],
Capabilities: capability.Capabilities{{
Type: capability.TCPServer,
Data: &capability.Server{Port: 42},
}},
},
},
}
s.testHandleMessage(t, p, CMDAddr, pl)
addrs := s.discovery.(*testDiscovery).backfill
require.Equal(t, 2, len(addrs))
require.Equal(t, "1.2.3.4:12", addrs[0])
require.Equal(t, net.JoinHostPort(net.IP(ips[2][:]).String(), "42"), addrs[1])
t.Run("CMDAddr not requested", func(t *testing.T) {
msg := NewMessage(CMDAddr, pl)
require.Error(t, s.handleMessage(p, msg))
})
}
type feerStub struct {
blockHeight uint32
}
func (f feerStub) FeePerByte() int64 { return 1 }
func (f feerStub) GetUtilityTokenBalance(util.Uint160) *big.Int { return big.NewInt(100000000) }
func (f feerStub) BlockHeight() uint32 { return f.blockHeight }
func (f feerStub) GetBaseExecFee() int64 { return interop.DefaultBaseExecFee }
func TestMemPool(t *testing.T) {
s := startTestServer(t)
var actual []util.Uint256
p := newLocalPeer(t, s)
p.handshaked = 1
p.messageHandler = func(t *testing.T, msg *Message) {
if msg.Command == CMDInv {
actual = append(actual, msg.Payload.(*payload.Inventory).Hashes...)
}
}
bc := s.chain.(*fakechain.FakeChain)
expected := make([]util.Uint256, 4)
for i := range expected {
tx := newDummyTx()
require.NoError(t, bc.Pool.Add(tx, &feerStub{blockHeight: 10}))
expected[i] = tx.Hash()
}
s.testHandleMessage(t, p, CMDMempool, payload.NullPayload{})
require.ElementsMatch(t, expected, actual)
}
func TestVerifyNotaryRequest(t *testing.T) {
bc := fakechain.NewFakeChain()
bc.MaxVerificationGAS = 10
bc.NotaryContractScriptHash = util.Uint160{1, 2, 3}
s, err := newServerFromConstructors(ServerConfig{Addresses: []config.AnnounceableAddress{{Address: ":0"}}}, bc, new(fakechain.FakeStateSync), zaptest.NewLogger(t), newFakeTransp, newTestDiscovery)
require.NoError(t, err)
newNotaryRequest := func() *payload.P2PNotaryRequest {
return &payload.P2PNotaryRequest{
MainTransaction: &transaction.Transaction{
Script: []byte{0, 1, 2},
Signers: []transaction.Signer{{Account: random.Uint160()}},
},
FallbackTransaction: &transaction.Transaction{
ValidUntilBlock: 321,
Signers: []transaction.Signer{{Account: bc.NotaryContractScriptHash}, {Account: random.Uint160()}},
},
Witness: transaction.Witness{},
}
}
t.Run("bad payload witness", func(t *testing.T) {
bc.VerifyWitnessF = func() (int64, error) { return 0, errors.New("bad witness") }
require.Error(t, s.verifyNotaryRequest(nil, newNotaryRequest()))
})
t.Run("bad fallback sender", func(t *testing.T) {
bc.VerifyWitnessF = func() (int64, error) { return 0, nil }
r := newNotaryRequest()
r.FallbackTransaction.Signers[0] = transaction.Signer{Account: util.Uint160{7, 8, 9}}
require.Error(t, s.verifyNotaryRequest(nil, r))
})
t.Run("bad main sender", func(t *testing.T) {
bc.VerifyWitnessF = func() (int64, error) { return 0, nil }
r := newNotaryRequest()
r.MainTransaction.Signers[0] = transaction.Signer{Account: bc.NotaryContractScriptHash}
require.Error(t, s.verifyNotaryRequest(nil, r))
})
t.Run("expired deposit", func(t *testing.T) {
r := newNotaryRequest()
bc.NotaryDepositExpiration = r.FallbackTransaction.ValidUntilBlock
require.Error(t, s.verifyNotaryRequest(nil, r))
})
t.Run("good", func(t *testing.T) {
r := newNotaryRequest()
bc.NotaryDepositExpiration = r.FallbackTransaction.ValidUntilBlock + 1
require.NoError(t, s.verifyNotaryRequest(nil, r))
})
}
func TestTryInitStateSync(t *testing.T) {
t.Run("module inactive", func(t *testing.T) {
s := startTestServer(t)
s.tryInitStateSync()
})
t.Run("module already initialized", func(t *testing.T) {
s := startTestServer(t)
ss := &fakechain.FakeStateSync{}
ss.IsActiveFlag.Store(true)
ss.IsInitializedFlag.Store(true)
s.stateSync = ss
s.tryInitStateSync()
})
t.Run("good", func(t *testing.T) {
s := startTestServer(t)
for _, h := range []uint32{10, 8, 7, 4, 11, 4} {
p := newLocalPeer(t, s)
p.handshaked = 1
p.lastBlockIndex = h
s.register <- p
}
p := newLocalPeer(t, s)
p.handshaked = 0 // one disconnected peer to check it won't be taken into attention
p.lastBlockIndex = 5
s.register <- p
require.Eventually(t, func() bool { return 7 == s.PeerCount() }, time.Second, time.Millisecond*10)
var expectedH uint32 = 8 // median peer
ss := &fakechain.FakeStateSync{InitFunc: func(h uint32) error {
if h != expectedH {
return fmt.Errorf("invalid height: expected %d, got %d", expectedH, h)
}
return nil
}}
ss.IsActiveFlag.Store(true)
s.stateSync = ss
s.tryInitStateSync()
})
}
func TestServer_Port(t *testing.T) {
s := newTestServer(t, ServerConfig{
Addresses: []config.AnnounceableAddress{
{Address: "1.2.3.4:10"}, // some random address
{Address: ":1"}, // listen all IPs
{Address: "127.0.0.1:2"}, // address without announced port
{Address: "123.123.0.123:3", AnnouncedPort: 123}}, // address with announced port
})
// Default addr => first port available
actual, err := s.Port(nil)
require.NoError(t, err)
require.Equal(t, uint16(10), actual)
// Specified address with direct match => port of matched address
actual, err = s.Port(&net.TCPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 123})
require.NoError(t, err)
require.Equal(t, uint16(2), actual)
// No address match => 0.0.0.0's port
actual, err = s.Port(&net.TCPAddr{IP: net.IPv4(5, 6, 7, 8), Port: 123})
require.NoError(t, err)
require.Equal(t, uint16(1), actual)
// Specified address with match on announceable address => announced port
actual, err = s.Port(&net.TCPAddr{IP: net.IPv4(123, 123, 0, 123), Port: 123})
require.NoError(t, err)
require.Equal(t, uint16(123), actual)
}