neoneo-go/pkg/network/server_test.go
Roman Khimov bc6d6e58bc network: always pass transactions to consensus process
Consensus can require conflicting transactions and it can require more
transactions than mempool can fit, all of this should work. Transactions will
be checked anyway using its secondary mempool. See the scenario from #668.
2022-01-14 20:08:40 +03:00

1089 lines
33 KiB
Go

package network
import (
"errors"
"fmt"
"math/big"
"net"
"strconv"
atomic2 "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/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/atomic"
"go.uber.org/zap/zaptest"
)
type fakeConsensus struct {
started atomic.Bool
stopped atomic.Bool
payloads []*payload.Extensible
txs []*transaction.Transaction
}
var _ consensus.Service = (*fakeConsensus)(nil)
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.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{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 startWithChannel(s *Server) chan error {
ch := make(chan error)
go func() {
s.Start(ch)
close(ch)
}()
return ch
}
func TestServerStartAndShutdown(t *testing.T) {
t.Run("no consensus", func(t *testing.T) {
s := newTestServer(t, ServerConfig{})
ch := startWithChannel(s)
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.transport.(*fakeTransp).started.Load())
assert.Nil(t, s.txCallback)
s.Shutdown()
<-ch
require.True(t, s.transport.(*fakeTransp).closed.Load())
err, ok := p.droppedWith.Load().(error)
require.True(t, ok)
require.True(t, errors.Is(err, errServerShutdown))
})
t.Run("with consensus", func(t *testing.T) {
s := newTestServer(t, ServerConfig{Wallet: new(config.Wallet)})
ch := startWithChannel(s)
p := newLocalPeer(t, s)
s.register <- p
assert.True(t, s.services[0].(*fakeConsensus).started.Load())
s.Shutdown()
<-ch
require.True(t, s.services[0].(*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
}
startWithCleanup(t, s)
s.register <- ps[0]
require.Eventually(t, func() bool { return 1 == s.PeerCount() }, time.Second, time.Millisecond*10)
s.register <- 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.True(t, errors.Is(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{Port: 0, 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.transport.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 = 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{Port: 0, UserAgent: "/test/"})
p = newLocalPeer(t, s)
)
// we need to set listener at least to handle dynamic port correctly
s.transport.Accept()
p.messageHandler = func(t *testing.T, msg *Message) {
// listener is already set, so Address() gives us proper address with port
_, p, err := net.SplitHostPort(s.transport.Address())
assert.NoError(t, err)
port, err := strconv.ParseUint(p, 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 = true
}
msg := NewMessage(cmd, pl)
require.NoError(t, s.handleMessage(p, msg))
return s
}
func startTestServer(t *testing.T, protocolCfg ...func(*config.ProtocolConfiguration)) *Server {
var s *Server
srvCfg := ServerConfig{Port: 0, 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) {
ch := startWithChannel(s)
t.Cleanup(func() {
s.Shutdown()
<-ch
})
}
func TestBlock(t *testing.T) {
s := startTestServer(t)
atomic2.StoreUint32(&s.chain.(*fakechain.FakeChain).Blockheight, 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 }, time.Second, time.Millisecond*500)
}
func TestConsensus(t *testing.T) {
s := newTestServer(t, ServerConfig{Wallet: new(config.Wallet)})
startWithCleanup(t, s)
atomic2.StoreUint32(&s.chain.(*fakechain.FakeChain).Blockheight, 4)
p := newLocalPeer(t, s)
p.handshaked = true
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 = consensus.Category
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[0].(*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[0].(*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{Wallet: new(config.Wallet)})
startWithCleanup(t, s)
t.Run("good", func(t *testing.T) {
tx := newDummyTx()
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.Contains(t, s.services[0].(*fakeConsensus).txs, tx)
})
t.Run("bad", func(t *testing.T) {
tx := newDummyTx()
s.chain.(*fakechain.FakeChain).PoolTxF = func(*transaction.Transaction) error { return core.ErrInsufficientFunds }
s.testHandleMessage(t, nil, CMDTX, tx)
require.Contains(t, s.services[0].(*fakeConsensus).txs, tx) // Consensus receives everything.
})
}
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 = true
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() }, time.Second, time.Millisecond)
require.Eventually(t, func() bool { return recvNotFound.Load() }, 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), 64}, make([]byte, 64)...), 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 = true
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 = true
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 = true
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 = true
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 = true
msg := NewMessage(CMDGetMPTData, &payload.MPTInventory{
Hashes: []util.Uint256{{1, 2, 3}},
})
require.Error(t, s.handleMessage(p, msg))
})
t.Run("KeepOnlyLatestState on", func(t *testing.T) {
s := startTestServer(t, func(c *config.ProtocolConfiguration) {
c.P2PStateExchangeExtensions = true
c.KeepOnlyLatestState = true
})
p := newLocalPeer(t, s)
p.handshaked = true
msg := NewMessage(CMDGetMPTData, &payload.MPTInventory{
Hashes: []util.Uint256{{1, 2, 3}},
})
require.Error(t, s.handleMessage(p, msg))
})
t.Run("good", func(t *testing.T) {
s := startTestServer(t, func(c *config.ProtocolConfiguration) {
c.P2PStateExchangeExtensions = true
})
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 = true
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)
})
}
func TestHandleMPTData(t *testing.T) {
t.Run("P2PStateExchange extensions off", func(t *testing.T) {
s := startTestServer(t)
p := newLocalPeer(t, s)
p.handshaked = true
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{Port: 0, UserAgent: "/test/"})
s.chain.(*fakechain.FakeChain).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 = true
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 = true
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 = true
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 = true
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) P2PSigExtensionsEnabled() bool { return false }
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 = true
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{}, bc, new(fakechain.FakeStateSync), zaptest.NewLogger(t), newFakeTransp, newTestDiscovery)
require.NoError(t, err)
t.Cleanup(s.Shutdown)
newNotaryRequest := func() *payload.P2PNotaryRequest {
return &payload.P2PNotaryRequest{
MainTransaction: &transaction.Transaction{Script: []byte{0, 1, 2}},
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("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 = true
p.lastBlockIndex = h
s.register <- p
}
p := newLocalPeer(t, s)
p.handshaked = false // 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()
})
}