79c7a69ac8
* swarm: Better syncing and retrieval option definition * swarm/network/stream: better comments * swarm/network/stream: addressed PR comments
924 lines
19 KiB
Go
924 lines
19 KiB
Go
// Copyright 2018 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package stream
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import (
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"bytes"
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"context"
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"errors"
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"strconv"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/crypto/sha3"
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p2ptest "github.com/ethereum/go-ethereum/p2p/testing"
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)
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func TestStreamerSubscribe(t *testing.T) {
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tester, streamer, _, teardown, err := newStreamerTester(t, nil)
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defer teardown()
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if err != nil {
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t.Fatal(err)
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}
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stream := NewStream("foo", "", true)
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err = streamer.Subscribe(tester.Nodes[0].ID(), stream, NewRange(0, 0), Top)
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if err == nil || err.Error() != "stream foo not registered" {
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t.Fatalf("Expected error %v, got %v", "stream foo not registered", err)
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}
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}
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func TestStreamerRequestSubscription(t *testing.T) {
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tester, streamer, _, teardown, err := newStreamerTester(t, nil)
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defer teardown()
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if err != nil {
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t.Fatal(err)
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}
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stream := NewStream("foo", "", false)
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err = streamer.RequestSubscription(tester.Nodes[0].ID(), stream, &Range{}, Top)
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if err == nil || err.Error() != "stream foo not registered" {
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t.Fatalf("Expected error %v, got %v", "stream foo not registered", err)
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}
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}
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var (
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hash0 = sha3.Sum256([]byte{0})
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hash1 = sha3.Sum256([]byte{1})
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hash2 = sha3.Sum256([]byte{2})
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hashesTmp = append(hash0[:], hash1[:]...)
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hashes = append(hashesTmp, hash2[:]...)
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corruptHashes = append(hashes[:40])
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)
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type testClient struct {
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t string
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wait0 chan bool
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wait2 chan bool
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batchDone chan bool
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receivedHashes map[string][]byte
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}
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func newTestClient(t string) *testClient {
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return &testClient{
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t: t,
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wait0: make(chan bool),
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wait2: make(chan bool),
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batchDone: make(chan bool),
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receivedHashes: make(map[string][]byte),
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}
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}
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func (self *testClient) NeedData(ctx context.Context, hash []byte) func(context.Context) error {
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self.receivedHashes[string(hash)] = hash
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if bytes.Equal(hash, hash0[:]) {
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return func(context.Context) error {
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<-self.wait0
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return nil
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}
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} else if bytes.Equal(hash, hash2[:]) {
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return func(context.Context) error {
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<-self.wait2
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return nil
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}
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}
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return nil
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}
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func (self *testClient) BatchDone(Stream, uint64, []byte, []byte) func() (*TakeoverProof, error) {
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close(self.batchDone)
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return nil
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}
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func (self *testClient) Close() {}
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type testServer struct {
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t string
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sessionIndex uint64
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}
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func newTestServer(t string, sessionIndex uint64) *testServer {
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return &testServer{
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t: t,
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sessionIndex: sessionIndex,
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}
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}
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func (s *testServer) SessionIndex() (uint64, error) {
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return s.sessionIndex, nil
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}
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func (self *testServer) SetNextBatch(from uint64, to uint64) ([]byte, uint64, uint64, *HandoverProof, error) {
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return make([]byte, HashSize), from + 1, to + 1, nil, nil
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}
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func (self *testServer) GetData(context.Context, []byte) ([]byte, error) {
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return nil, nil
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}
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func (self *testServer) Close() {
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}
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func TestStreamerDownstreamSubscribeUnsubscribeMsgExchange(t *testing.T) {
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tester, streamer, _, teardown, err := newStreamerTester(t, nil)
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defer teardown()
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if err != nil {
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t.Fatal(err)
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}
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streamer.RegisterClientFunc("foo", func(p *Peer, t string, live bool) (Client, error) {
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return newTestClient(t), nil
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})
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node := tester.Nodes[0]
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stream := NewStream("foo", "", true)
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err = streamer.Subscribe(node.ID(), stream, NewRange(5, 8), Top)
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if err != nil {
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t.Fatalf("Expected no error, got %v", err)
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}
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err = tester.TestExchanges(
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p2ptest.Exchange{
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Label: "Subscribe message",
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Expects: []p2ptest.Expect{
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{
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Code: 4,
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Msg: &SubscribeMsg{
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Stream: stream,
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History: NewRange(5, 8),
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Priority: Top,
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},
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Peer: node.ID(),
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},
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},
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},
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// trigger OfferedHashesMsg to actually create the client
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p2ptest.Exchange{
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Label: "OfferedHashes message",
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Triggers: []p2ptest.Trigger{
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{
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Code: 1,
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Msg: &OfferedHashesMsg{
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HandoverProof: &HandoverProof{
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Handover: &Handover{},
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},
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Hashes: hashes,
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From: 5,
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To: 8,
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Stream: stream,
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},
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Peer: node.ID(),
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},
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},
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Expects: []p2ptest.Expect{
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{
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Code: 2,
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Msg: &WantedHashesMsg{
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Stream: stream,
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Want: []byte{5},
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From: 9,
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To: 0,
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},
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Peer: node.ID(),
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},
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},
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},
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)
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if err != nil {
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t.Fatal(err)
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}
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err = streamer.Unsubscribe(node.ID(), stream)
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if err != nil {
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t.Fatalf("Expected no error, got %v", err)
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}
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err = tester.TestExchanges(p2ptest.Exchange{
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Label: "Unsubscribe message",
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Expects: []p2ptest.Expect{
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{
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Code: 0,
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Msg: &UnsubscribeMsg{
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Stream: stream,
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},
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Peer: node.ID(),
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},
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},
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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func TestStreamerUpstreamSubscribeUnsubscribeMsgExchange(t *testing.T) {
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tester, streamer, _, teardown, err := newStreamerTester(t, nil)
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defer teardown()
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if err != nil {
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t.Fatal(err)
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}
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stream := NewStream("foo", "", false)
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streamer.RegisterServerFunc("foo", func(p *Peer, t string, live bool) (Server, error) {
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return newTestServer(t, 10), nil
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})
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node := tester.Nodes[0]
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err = tester.TestExchanges(p2ptest.Exchange{
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Label: "Subscribe message",
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Triggers: []p2ptest.Trigger{
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{
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Code: 4,
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Msg: &SubscribeMsg{
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Stream: stream,
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History: NewRange(5, 8),
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Priority: Top,
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},
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Peer: node.ID(),
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},
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},
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Expects: []p2ptest.Expect{
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{
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Code: 1,
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Msg: &OfferedHashesMsg{
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Stream: stream,
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HandoverProof: &HandoverProof{
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Handover: &Handover{},
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},
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Hashes: make([]byte, HashSize),
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From: 6,
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To: 9,
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},
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Peer: node.ID(),
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},
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},
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})
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if err != nil {
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t.Fatal(err)
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}
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err = tester.TestExchanges(p2ptest.Exchange{
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Label: "unsubscribe message",
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Triggers: []p2ptest.Trigger{
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{
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Code: 0,
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Msg: &UnsubscribeMsg{
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Stream: stream,
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},
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Peer: node.ID(),
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},
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},
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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func TestStreamerUpstreamSubscribeUnsubscribeMsgExchangeLive(t *testing.T) {
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tester, streamer, _, teardown, err := newStreamerTester(t, nil)
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defer teardown()
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if err != nil {
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t.Fatal(err)
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}
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stream := NewStream("foo", "", true)
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streamer.RegisterServerFunc("foo", func(p *Peer, t string, live bool) (Server, error) {
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return newTestServer(t, 0), nil
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})
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node := tester.Nodes[0]
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err = tester.TestExchanges(p2ptest.Exchange{
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Label: "Subscribe message",
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Triggers: []p2ptest.Trigger{
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{
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Code: 4,
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Msg: &SubscribeMsg{
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Stream: stream,
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Priority: Top,
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},
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Peer: node.ID(),
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},
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},
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Expects: []p2ptest.Expect{
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{
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Code: 1,
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Msg: &OfferedHashesMsg{
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Stream: stream,
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HandoverProof: &HandoverProof{
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Handover: &Handover{},
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},
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Hashes: make([]byte, HashSize),
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From: 1,
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To: 0,
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},
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Peer: node.ID(),
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},
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},
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})
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if err != nil {
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t.Fatal(err)
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}
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err = tester.TestExchanges(p2ptest.Exchange{
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Label: "unsubscribe message",
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Triggers: []p2ptest.Trigger{
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{
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Code: 0,
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Msg: &UnsubscribeMsg{
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Stream: stream,
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},
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Peer: node.ID(),
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},
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},
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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func TestStreamerUpstreamSubscribeErrorMsgExchange(t *testing.T) {
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tester, streamer, _, teardown, err := newStreamerTester(t, nil)
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defer teardown()
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if err != nil {
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t.Fatal(err)
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}
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streamer.RegisterServerFunc("foo", func(p *Peer, t string, live bool) (Server, error) {
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return newTestServer(t, 0), nil
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})
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stream := NewStream("bar", "", true)
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node := tester.Nodes[0]
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err = tester.TestExchanges(p2ptest.Exchange{
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Label: "Subscribe message",
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Triggers: []p2ptest.Trigger{
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{
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Code: 4,
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Msg: &SubscribeMsg{
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Stream: stream,
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History: NewRange(5, 8),
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Priority: Top,
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},
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Peer: node.ID(),
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},
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},
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Expects: []p2ptest.Expect{
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{
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Code: 7,
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Msg: &SubscribeErrorMsg{
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Error: "stream bar not registered",
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},
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Peer: node.ID(),
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},
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},
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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func TestStreamerUpstreamSubscribeLiveAndHistory(t *testing.T) {
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tester, streamer, _, teardown, err := newStreamerTester(t, nil)
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defer teardown()
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if err != nil {
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t.Fatal(err)
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}
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stream := NewStream("foo", "", true)
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streamer.RegisterServerFunc("foo", func(p *Peer, t string, live bool) (Server, error) {
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return newTestServer(t, 10), nil
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})
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node := tester.Nodes[0]
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err = tester.TestExchanges(p2ptest.Exchange{
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Label: "Subscribe message",
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Triggers: []p2ptest.Trigger{
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{
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Code: 4,
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Msg: &SubscribeMsg{
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Stream: stream,
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History: NewRange(5, 8),
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Priority: Top,
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},
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Peer: node.ID(),
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},
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},
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Expects: []p2ptest.Expect{
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{
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Code: 1,
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Msg: &OfferedHashesMsg{
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Stream: NewStream("foo", "", false),
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HandoverProof: &HandoverProof{
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Handover: &Handover{},
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},
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Hashes: make([]byte, HashSize),
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From: 6,
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To: 9,
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},
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Peer: node.ID(),
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},
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{
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Code: 1,
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Msg: &OfferedHashesMsg{
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Stream: stream,
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HandoverProof: &HandoverProof{
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Handover: &Handover{},
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},
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From: 11,
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To: 0,
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Hashes: make([]byte, HashSize),
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},
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Peer: node.ID(),
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},
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},
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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func TestStreamerDownstreamCorruptHashesMsgExchange(t *testing.T) {
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tester, streamer, _, teardown, err := newStreamerTester(t, nil)
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defer teardown()
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if err != nil {
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t.Fatal(err)
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}
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stream := NewStream("foo", "", true)
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var tc *testClient
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streamer.RegisterClientFunc("foo", func(p *Peer, t string, live bool) (Client, error) {
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tc = newTestClient(t)
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return tc, nil
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})
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node := tester.Nodes[0]
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err = streamer.Subscribe(node.ID(), stream, NewRange(5, 8), Top)
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if err != nil {
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t.Fatalf("Expected no error, got %v", err)
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}
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err = tester.TestExchanges(p2ptest.Exchange{
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Label: "Subscribe message",
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Expects: []p2ptest.Expect{
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{
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Code: 4,
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Msg: &SubscribeMsg{
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Stream: stream,
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History: NewRange(5, 8),
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Priority: Top,
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},
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Peer: node.ID(),
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},
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},
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},
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p2ptest.Exchange{
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Label: "Corrupt offered hash message",
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Triggers: []p2ptest.Trigger{
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{
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Code: 1,
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Msg: &OfferedHashesMsg{
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HandoverProof: &HandoverProof{
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Handover: &Handover{},
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},
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Hashes: corruptHashes,
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From: 5,
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To: 8,
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Stream: stream,
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},
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Peer: node.ID(),
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},
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},
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})
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if err != nil {
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t.Fatal(err)
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}
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expectedError := errors.New("Message handler error: (msg code 1): error invalid hashes length (len: 40)")
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if err := tester.TestDisconnected(&p2ptest.Disconnect{Peer: node.ID(), Error: expectedError}); err != nil {
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t.Fatal(err)
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}
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}
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|
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func TestStreamerDownstreamOfferedHashesMsgExchange(t *testing.T) {
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tester, streamer, _, teardown, err := newStreamerTester(t, nil)
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defer teardown()
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if err != nil {
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t.Fatal(err)
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}
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stream := NewStream("foo", "", true)
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var tc *testClient
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streamer.RegisterClientFunc("foo", func(p *Peer, t string, live bool) (Client, error) {
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tc = newTestClient(t)
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return tc, nil
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})
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node := tester.Nodes[0]
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err = streamer.Subscribe(node.ID(), stream, NewRange(5, 8), Top)
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if err != nil {
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t.Fatalf("Expected no error, got %v", err)
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}
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|
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err = tester.TestExchanges(p2ptest.Exchange{
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Label: "Subscribe message",
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Expects: []p2ptest.Expect{
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{
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Code: 4,
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Msg: &SubscribeMsg{
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Stream: stream,
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History: NewRange(5, 8),
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Priority: Top,
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},
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Peer: node.ID(),
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},
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},
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},
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p2ptest.Exchange{
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Label: "WantedHashes message",
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Triggers: []p2ptest.Trigger{
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{
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Code: 1,
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Msg: &OfferedHashesMsg{
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HandoverProof: &HandoverProof{
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Handover: &Handover{},
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},
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Hashes: hashes,
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From: 5,
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To: 8,
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Stream: stream,
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},
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Peer: node.ID(),
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},
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},
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Expects: []p2ptest.Expect{
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{
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Code: 2,
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Msg: &WantedHashesMsg{
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Stream: stream,
|
|
Want: []byte{5},
|
|
From: 9,
|
|
To: 0,
|
|
},
|
|
Peer: node.ID(),
|
|
},
|
|
},
|
|
})
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if len(tc.receivedHashes) != 3 {
|
|
t.Fatalf("Expected number of received hashes %v, got %v", 3, len(tc.receivedHashes))
|
|
}
|
|
|
|
close(tc.wait0)
|
|
|
|
timeout := time.NewTimer(100 * time.Millisecond)
|
|
defer timeout.Stop()
|
|
|
|
select {
|
|
case <-tc.batchDone:
|
|
t.Fatal("batch done early")
|
|
case <-timeout.C:
|
|
}
|
|
|
|
close(tc.wait2)
|
|
|
|
timeout2 := time.NewTimer(10000 * time.Millisecond)
|
|
defer timeout2.Stop()
|
|
|
|
select {
|
|
case <-tc.batchDone:
|
|
case <-timeout2.C:
|
|
t.Fatal("timeout waiting batchdone call")
|
|
}
|
|
|
|
}
|
|
|
|
func TestStreamerRequestSubscriptionQuitMsgExchange(t *testing.T) {
|
|
tester, streamer, _, teardown, err := newStreamerTester(t, nil)
|
|
defer teardown()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
streamer.RegisterServerFunc("foo", func(p *Peer, t string, live bool) (Server, error) {
|
|
return newTestServer(t, 10), nil
|
|
})
|
|
|
|
node := tester.Nodes[0]
|
|
|
|
stream := NewStream("foo", "", true)
|
|
err = streamer.RequestSubscription(node.ID(), stream, NewRange(5, 8), Top)
|
|
if err != nil {
|
|
t.Fatalf("Expected no error, got %v", err)
|
|
}
|
|
|
|
err = tester.TestExchanges(
|
|
p2ptest.Exchange{
|
|
Label: "RequestSubscription message",
|
|
Expects: []p2ptest.Expect{
|
|
{
|
|
Code: 8,
|
|
Msg: &RequestSubscriptionMsg{
|
|
Stream: stream,
|
|
History: NewRange(5, 8),
|
|
Priority: Top,
|
|
},
|
|
Peer: node.ID(),
|
|
},
|
|
},
|
|
},
|
|
p2ptest.Exchange{
|
|
Label: "Subscribe message",
|
|
Triggers: []p2ptest.Trigger{
|
|
{
|
|
Code: 4,
|
|
Msg: &SubscribeMsg{
|
|
Stream: stream,
|
|
History: NewRange(5, 8),
|
|
Priority: Top,
|
|
},
|
|
Peer: node.ID(),
|
|
},
|
|
},
|
|
Expects: []p2ptest.Expect{
|
|
{
|
|
Code: 1,
|
|
Msg: &OfferedHashesMsg{
|
|
Stream: NewStream("foo", "", false),
|
|
HandoverProof: &HandoverProof{
|
|
Handover: &Handover{},
|
|
},
|
|
Hashes: make([]byte, HashSize),
|
|
From: 6,
|
|
To: 9,
|
|
},
|
|
Peer: node.ID(),
|
|
},
|
|
{
|
|
Code: 1,
|
|
Msg: &OfferedHashesMsg{
|
|
Stream: stream,
|
|
HandoverProof: &HandoverProof{
|
|
Handover: &Handover{},
|
|
},
|
|
From: 11,
|
|
To: 0,
|
|
Hashes: make([]byte, HashSize),
|
|
},
|
|
Peer: node.ID(),
|
|
},
|
|
},
|
|
},
|
|
)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
err = streamer.Quit(node.ID(), stream)
|
|
if err != nil {
|
|
t.Fatalf("Expected no error, got %v", err)
|
|
}
|
|
|
|
err = tester.TestExchanges(p2ptest.Exchange{
|
|
Label: "Quit message",
|
|
Expects: []p2ptest.Expect{
|
|
{
|
|
Code: 9,
|
|
Msg: &QuitMsg{
|
|
Stream: stream,
|
|
},
|
|
Peer: node.ID(),
|
|
},
|
|
},
|
|
})
|
|
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
historyStream := getHistoryStream(stream)
|
|
|
|
err = streamer.Quit(node.ID(), historyStream)
|
|
if err != nil {
|
|
t.Fatalf("Expected no error, got %v", err)
|
|
}
|
|
|
|
err = tester.TestExchanges(p2ptest.Exchange{
|
|
Label: "Quit message",
|
|
Expects: []p2ptest.Expect{
|
|
{
|
|
Code: 9,
|
|
Msg: &QuitMsg{
|
|
Stream: historyStream,
|
|
},
|
|
Peer: node.ID(),
|
|
},
|
|
},
|
|
})
|
|
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
// TestMaxPeerServersWithUnsubscribe creates a registry with a limited
|
|
// number of stream servers, and performs a test with subscriptions and
|
|
// unsubscriptions, checking if unsubscriptions will remove streams,
|
|
// leaving place for new streams.
|
|
func TestMaxPeerServersWithUnsubscribe(t *testing.T) {
|
|
var maxPeerServers = 6
|
|
tester, streamer, _, teardown, err := newStreamerTester(t, &RegistryOptions{
|
|
Retrieval: RetrievalDisabled,
|
|
Syncing: SyncingDisabled,
|
|
MaxPeerServers: maxPeerServers,
|
|
})
|
|
defer teardown()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
streamer.RegisterServerFunc("foo", func(p *Peer, t string, live bool) (Server, error) {
|
|
return newTestServer(t, 0), nil
|
|
})
|
|
|
|
node := tester.Nodes[0]
|
|
|
|
for i := 0; i < maxPeerServers+10; i++ {
|
|
stream := NewStream("foo", strconv.Itoa(i), true)
|
|
|
|
err = tester.TestExchanges(p2ptest.Exchange{
|
|
Label: "Subscribe message",
|
|
Triggers: []p2ptest.Trigger{
|
|
{
|
|
Code: 4,
|
|
Msg: &SubscribeMsg{
|
|
Stream: stream,
|
|
Priority: Top,
|
|
},
|
|
Peer: node.ID(),
|
|
},
|
|
},
|
|
Expects: []p2ptest.Expect{
|
|
{
|
|
Code: 1,
|
|
Msg: &OfferedHashesMsg{
|
|
Stream: stream,
|
|
HandoverProof: &HandoverProof{
|
|
Handover: &Handover{},
|
|
},
|
|
Hashes: make([]byte, HashSize),
|
|
From: 1,
|
|
To: 0,
|
|
},
|
|
Peer: node.ID(),
|
|
},
|
|
},
|
|
})
|
|
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
err = tester.TestExchanges(p2ptest.Exchange{
|
|
Label: "unsubscribe message",
|
|
Triggers: []p2ptest.Trigger{
|
|
{
|
|
Code: 0,
|
|
Msg: &UnsubscribeMsg{
|
|
Stream: stream,
|
|
},
|
|
Peer: node.ID(),
|
|
},
|
|
},
|
|
})
|
|
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestMaxPeerServersWithoutUnsubscribe creates a registry with a limited
|
|
// number of stream servers, and performs subscriptions to detect subscriptions
|
|
// error message exchange.
|
|
func TestMaxPeerServersWithoutUnsubscribe(t *testing.T) {
|
|
var maxPeerServers = 6
|
|
tester, streamer, _, teardown, err := newStreamerTester(t, &RegistryOptions{
|
|
MaxPeerServers: maxPeerServers,
|
|
})
|
|
defer teardown()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
streamer.RegisterServerFunc("foo", func(p *Peer, t string, live bool) (Server, error) {
|
|
return newTestServer(t, 0), nil
|
|
})
|
|
|
|
node := tester.Nodes[0]
|
|
|
|
for i := 0; i < maxPeerServers+10; i++ {
|
|
stream := NewStream("foo", strconv.Itoa(i), true)
|
|
|
|
if i >= maxPeerServers {
|
|
err = tester.TestExchanges(p2ptest.Exchange{
|
|
Label: "Subscribe message",
|
|
Triggers: []p2ptest.Trigger{
|
|
{
|
|
Code: 4,
|
|
Msg: &SubscribeMsg{
|
|
Stream: stream,
|
|
Priority: Top,
|
|
},
|
|
Peer: node.ID(),
|
|
},
|
|
},
|
|
Expects: []p2ptest.Expect{
|
|
{
|
|
Code: 7,
|
|
Msg: &SubscribeErrorMsg{
|
|
Error: ErrMaxPeerServers.Error(),
|
|
},
|
|
Peer: node.ID(),
|
|
},
|
|
},
|
|
})
|
|
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
continue
|
|
}
|
|
|
|
err = tester.TestExchanges(p2ptest.Exchange{
|
|
Label: "Subscribe message",
|
|
Triggers: []p2ptest.Trigger{
|
|
{
|
|
Code: 4,
|
|
Msg: &SubscribeMsg{
|
|
Stream: stream,
|
|
Priority: Top,
|
|
},
|
|
Peer: node.ID(),
|
|
},
|
|
},
|
|
Expects: []p2ptest.Expect{
|
|
{
|
|
Code: 1,
|
|
Msg: &OfferedHashesMsg{
|
|
Stream: stream,
|
|
HandoverProof: &HandoverProof{
|
|
Handover: &Handover{},
|
|
},
|
|
Hashes: make([]byte, HashSize),
|
|
From: 1,
|
|
To: 0,
|
|
},
|
|
Peer: node.ID(),
|
|
},
|
|
},
|
|
})
|
|
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
}
|