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client_test.go
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client_test.go
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package torrent
import (
"encoding/binary"
"errors"
"fmt"
"io"
"io/ioutil"
"log"
"math/rand"
"net"
"os"
"path/filepath"
"strings"
"sync"
"testing"
"time"
_ "github.com/anacrolix/envpprof"
"github.com/anacrolix/missinggo"
"github.com/anacrolix/missinggo/filecache"
"github.com/anacrolix/missinggo/pubsub"
"github.com/anacrolix/utp"
"github.com/bradfitz/iter"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"golang.org/x/time/rate"
"github.com/anacrolix/torrent/bencode"
"github.com/anacrolix/torrent/dht"
"github.com/anacrolix/torrent/internal/testutil"
"github.com/anacrolix/torrent/iplist"
"github.com/anacrolix/torrent/metainfo"
"github.com/anacrolix/torrent/storage"
)
func init() {
log.SetFlags(log.LstdFlags | log.Llongfile)
}
var TestingConfig = Config{
ListenAddr: "localhost:0",
NoDHT: true,
DisableTrackers: true,
DataDir: "/tmp/anacrolix",
DHTConfig: dht.ServerConfig{
NoDefaultBootstrap: true,
},
Debug: true,
}
func TestClientDefault(t *testing.T) {
cl, err := NewClient(&TestingConfig)
require.NoError(t, err)
cl.Close()
}
func TestAddDropTorrent(t *testing.T) {
cl, err := NewClient(&TestingConfig)
require.NoError(t, err)
defer cl.Close()
dir, mi := testutil.GreetingTestTorrent()
defer os.RemoveAll(dir)
tt, new, err := cl.AddTorrentSpec(TorrentSpecFromMetaInfo(mi))
require.NoError(t, err)
assert.True(t, new)
tt.SetMaxEstablishedConns(0)
tt.SetMaxEstablishedConns(1)
tt.Drop()
}
func TestAddTorrentNoSupportedTrackerSchemes(t *testing.T) {
t.SkipNow()
}
func TestAddTorrentNoUsableURLs(t *testing.T) {
t.SkipNow()
}
func TestAddPeersToUnknownTorrent(t *testing.T) {
t.SkipNow()
}
func TestPieceHashSize(t *testing.T) {
if pieceHash.Size() != 20 {
t.FailNow()
}
}
func TestTorrentInitialState(t *testing.T) {
dir, mi := testutil.GreetingTestTorrent()
defer os.RemoveAll(dir)
tor := &Torrent{
infoHash: mi.HashInfoBytes(),
pieceStateChanges: pubsub.NewPubSub(),
}
tor.chunkSize = 2
tor.storageOpener = storage.NewClient(storage.NewFile("/dev/null"))
// Needed to lock for asynchronous piece verification.
tor.cl = new(Client)
err := tor.setInfoBytes(mi.InfoBytes)
require.NoError(t, err)
require.Len(t, tor.pieces, 3)
tor.pendAllChunkSpecs(0)
tor.cl.mu.Lock()
assert.EqualValues(t, 3, tor.pieceNumPendingChunks(0))
tor.cl.mu.Unlock()
assert.EqualValues(t, chunkSpec{4, 1}, chunkIndexSpec(2, tor.pieceLength(0), tor.chunkSize))
}
func TestUnmarshalPEXMsg(t *testing.T) {
var m peerExchangeMessage
if err := bencode.Unmarshal([]byte("d5:added12:\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0ce"), &m); err != nil {
t.Fatal(err)
}
if len(m.Added) != 2 {
t.FailNow()
}
if m.Added[0].Port != 0x506 {
t.FailNow()
}
}
func TestReducedDialTimeout(t *testing.T) {
for _, _case := range []struct {
Max time.Duration
HalfOpenLimit int
PendingPeers int
ExpectedReduced time.Duration
}{
{nominalDialTimeout, 40, 0, nominalDialTimeout},
{nominalDialTimeout, 40, 1, nominalDialTimeout},
{nominalDialTimeout, 40, 39, nominalDialTimeout},
{nominalDialTimeout, 40, 40, nominalDialTimeout / 2},
{nominalDialTimeout, 40, 80, nominalDialTimeout / 3},
{nominalDialTimeout, 40, 4000, nominalDialTimeout / 101},
} {
reduced := reducedDialTimeout(_case.Max, _case.HalfOpenLimit, _case.PendingPeers)
expected := _case.ExpectedReduced
if expected < minDialTimeout {
expected = minDialTimeout
}
if reduced != expected {
t.Fatalf("expected %s, got %s", _case.ExpectedReduced, reduced)
}
}
}
func TestUTPRawConn(t *testing.T) {
l, err := utp.NewSocket("udp", "")
if err != nil {
t.Fatal(err)
}
defer l.Close()
go func() {
for {
_, err := l.Accept()
if err != nil {
break
}
}
}()
// Connect a UTP peer to see if the RawConn will still work.
s, _ := utp.NewSocket("udp", "")
defer s.Close()
utpPeer, err := s.Dial(fmt.Sprintf("localhost:%d", missinggo.AddrPort(l.Addr())))
if err != nil {
t.Fatalf("error dialing utp listener: %s", err)
}
defer utpPeer.Close()
peer, err := net.ListenPacket("udp", ":0")
if err != nil {
t.Fatal(err)
}
defer peer.Close()
msgsReceived := 0
// How many messages to send. I've set this to double the channel buffer
// size in the raw packetConn.
const N = 200
readerStopped := make(chan struct{})
// The reader goroutine.
go func() {
defer close(readerStopped)
b := make([]byte, 500)
for i := 0; i < N; i++ {
n, _, err := l.ReadFrom(b)
if err != nil {
t.Fatalf("error reading from raw conn: %s", err)
}
msgsReceived++
var d int
fmt.Sscan(string(b[:n]), &d)
if d != i {
log.Printf("got wrong number: expected %d, got %d", i, d)
}
}
}()
udpAddr, err := net.ResolveUDPAddr("udp", fmt.Sprintf("localhost:%d", missinggo.AddrPort(l.Addr())))
if err != nil {
t.Fatal(err)
}
for i := 0; i < N; i++ {
_, err := peer.WriteTo([]byte(fmt.Sprintf("%d", i)), udpAddr)
if err != nil {
t.Fatal(err)
}
time.Sleep(time.Microsecond)
}
select {
case <-readerStopped:
case <-time.After(time.Second):
t.Fatal("reader timed out")
}
if msgsReceived != N {
t.Fatalf("messages received: %d", msgsReceived)
}
}
func TestTwoClientsArbitraryPorts(t *testing.T) {
for i := 0; i < 2; i++ {
cl, err := NewClient(&TestingConfig)
if err != nil {
t.Fatal(err)
}
defer cl.Close()
}
}
func TestAddDropManyTorrents(t *testing.T) {
cl, err := NewClient(&TestingConfig)
require.NoError(t, err)
defer cl.Close()
for i := range iter.N(1000) {
var spec TorrentSpec
binary.PutVarint(spec.InfoHash[:], int64(i))
tt, new, err := cl.AddTorrentSpec(&spec)
assert.NoError(t, err)
assert.True(t, new)
defer tt.Drop()
}
}
type FileCacheClientStorageFactoryParams struct {
Capacity int64
SetCapacity bool
Wrapper func(*filecache.Cache) storage.ClientImpl
}
func NewFileCacheClientStorageFactory(ps FileCacheClientStorageFactoryParams) storageFactory {
return func(dataDir string) storage.ClientImpl {
fc, err := filecache.NewCache(dataDir)
if err != nil {
panic(err)
}
if ps.SetCapacity {
fc.SetCapacity(ps.Capacity)
}
return ps.Wrapper(fc)
}
}
type storageFactory func(string) storage.ClientImpl
func TestClientTransferDefault(t *testing.T) {
testClientTransfer(t, testClientTransferParams{
ExportClientStatus: true,
LeecherStorage: NewFileCacheClientStorageFactory(FileCacheClientStorageFactoryParams{
Wrapper: fileCachePieceResourceStorage,
}),
})
}
func TestClientTransferRateLimitedUpload(t *testing.T) {
started := time.Now()
testClientTransfer(t, testClientTransferParams{
// We are uploading 13 bytes (the length of the greeting torrent). The
// chunks are 2 bytes in length. Then the smallest burst we can run
// with is 2. Time taken is (13-burst)/rate.
SeederUploadRateLimiter: rate.NewLimiter(11, 2),
})
require.True(t, time.Since(started) > time.Second)
}
func TestClientTransferRateLimitedDownload(t *testing.T) {
testClientTransfer(t, testClientTransferParams{
LeecherDownloadRateLimiter: rate.NewLimiter(512, 512),
})
}
func fileCachePieceResourceStorage(fc *filecache.Cache) storage.ClientImpl {
return storage.NewResourcePieces(fc.AsResourceProvider())
}
func fileCachePieceFileStorage(fc *filecache.Cache) storage.ClientImpl {
return storage.NewFileStorePieces(fc.AsFileStore())
}
func TestClientTransferSmallCache(t *testing.T) {
testClientTransfer(t, testClientTransferParams{
LeecherStorage: NewFileCacheClientStorageFactory(FileCacheClientStorageFactoryParams{
SetCapacity: true,
// Going below the piece length means it can't complete a piece so
// that it can be hashed.
Capacity: 5,
Wrapper: fileCachePieceResourceStorage,
}),
SetReadahead: true,
// Can't readahead too far or the cache will thrash and drop data we
// thought we had.
Readahead: 0,
ExportClientStatus: true,
})
}
func TestClientTransferVarious(t *testing.T) {
// Leecher storage
for _, ls := range []storageFactory{
NewFileCacheClientStorageFactory(FileCacheClientStorageFactoryParams{
Wrapper: fileCachePieceFileStorage,
}),
NewFileCacheClientStorageFactory(FileCacheClientStorageFactoryParams{
Wrapper: fileCachePieceResourceStorage,
}),
storage.NewBoltDB,
} {
// Seeder storage
for _, ss := range []func(string) storage.ClientImpl{
storage.NewFile,
storage.NewMMap,
} {
for _, responsive := range []bool{false, true} {
testClientTransfer(t, testClientTransferParams{
Responsive: responsive,
SeederStorage: ss,
LeecherStorage: ls,
})
for _, readahead := range []int64{-1, 0, 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 14, 15, 20} {
testClientTransfer(t, testClientTransferParams{
SeederStorage: ss,
Responsive: responsive,
SetReadahead: true,
Readahead: readahead,
LeecherStorage: ls,
})
}
}
}
}
}
type testClientTransferParams struct {
Responsive bool
Readahead int64
SetReadahead bool
ExportClientStatus bool
LeecherStorage func(string) storage.ClientImpl
SeederStorage func(string) storage.ClientImpl
SeederUploadRateLimiter *rate.Limiter
LeecherDownloadRateLimiter *rate.Limiter
}
// Creates a seeder and a leecher, and ensures the data transfers when a read
// is attempted on the leecher.
func testClientTransfer(t *testing.T, ps testClientTransferParams) {
greetingTempDir, mi := testutil.GreetingTestTorrent()
defer os.RemoveAll(greetingTempDir)
// Create seeder and a Torrent.
cfg := TestingConfig
cfg.Seed = true
cfg.UploadRateLimiter = ps.SeederUploadRateLimiter
// cfg.ListenAddr = "localhost:4000"
if ps.SeederStorage != nil {
cfg.DefaultStorage = ps.SeederStorage(greetingTempDir)
} else {
cfg.DataDir = greetingTempDir
}
seeder, err := NewClient(&cfg)
require.NoError(t, err)
defer seeder.Close()
if ps.ExportClientStatus {
testutil.ExportStatusWriter(seeder, "s")
}
// seederTorrent, new, err := seeder.AddTorrentSpec(TorrentSpecFromMetaInfo(mi))
_, new, err := seeder.AddTorrentSpec(TorrentSpecFromMetaInfo(mi))
require.NoError(t, err)
assert.True(t, new)
// Create leecher and a Torrent.
leecherDataDir, err := ioutil.TempDir("", "")
require.NoError(t, err)
defer os.RemoveAll(leecherDataDir)
if ps.LeecherStorage == nil {
cfg.DataDir = leecherDataDir
} else {
cfg.DefaultStorage = ps.LeecherStorage(leecherDataDir)
}
cfg.DownloadRateLimiter = ps.LeecherDownloadRateLimiter
// cfg.ListenAddr = "localhost:4001"
leecher, err := NewClient(&cfg)
require.NoError(t, err)
defer leecher.Close()
if ps.ExportClientStatus {
testutil.ExportStatusWriter(leecher, "l")
}
leecherGreeting, new, err := leecher.AddTorrentSpec(func() (ret *TorrentSpec) {
ret = TorrentSpecFromMetaInfo(mi)
ret.ChunkSize = 2
ret.Storage = storage.NewFile(leecherDataDir)
return
}())
require.NoError(t, err)
assert.True(t, new)
// Now do some things with leecher and seeder.
addClientPeer(leecherGreeting, seeder)
r := leecherGreeting.NewReader()
defer r.Close()
if ps.Responsive {
r.SetResponsive()
}
if ps.SetReadahead {
r.SetReadahead(ps.Readahead)
}
assertReadAllGreeting(t, r)
// After one read through, we can assume certain torrent statistics.
// These are not a strict requirement. It is however interesting to
// follow.
// t.Logf("%#v", seederTorrent.Stats())
// assert.EqualValues(t, 13, seederTorrent.Stats().DataBytesWritten)
// assert.EqualValues(t, 8, seederTorrent.Stats().ChunksWritten)
// assert.EqualValues(t, 13, leecherGreeting.Stats().DataBytesRead)
// assert.EqualValues(t, 8, leecherGreeting.Stats().ChunksRead)
// Read through again for the cases where the torrent data size exceeds
// the size of the cache.
assertReadAllGreeting(t, r)
}
func assertReadAllGreeting(t *testing.T, r io.ReadSeeker) {
pos, err := r.Seek(0, os.SEEK_SET)
assert.NoError(t, err)
assert.EqualValues(t, 0, pos)
_greeting, err := ioutil.ReadAll(r)
assert.NoError(t, err)
assert.EqualValues(t, testutil.GreetingFileContents, _greeting)
}
// Check that after completing leeching, a leecher transitions to a seeding
// correctly. Connected in a chain like so: Seeder <-> Leecher <-> LeecherLeecher.
func TestSeedAfterDownloading(t *testing.T) {
greetingTempDir, mi := testutil.GreetingTestTorrent()
defer os.RemoveAll(greetingTempDir)
cfg := TestingConfig
cfg.Seed = true
cfg.DataDir = greetingTempDir
seeder, err := NewClient(&cfg)
require.NoError(t, err)
defer seeder.Close()
testutil.ExportStatusWriter(seeder, "s")
seeder.AddTorrentSpec(TorrentSpecFromMetaInfo(mi))
cfg.DataDir, err = ioutil.TempDir("", "")
require.NoError(t, err)
defer os.RemoveAll(cfg.DataDir)
leecher, err := NewClient(&cfg)
require.NoError(t, err)
defer leecher.Close()
testutil.ExportStatusWriter(leecher, "l")
cfg.Seed = false
// cfg.TorrentDataOpener = nil
cfg.DataDir, err = ioutil.TempDir("", "")
require.NoError(t, err)
defer os.RemoveAll(cfg.DataDir)
leecherLeecher, _ := NewClient(&cfg)
defer leecherLeecher.Close()
testutil.ExportStatusWriter(leecherLeecher, "ll")
leecherGreeting, _, _ := leecher.AddTorrentSpec(func() (ret *TorrentSpec) {
ret = TorrentSpecFromMetaInfo(mi)
ret.ChunkSize = 2
return
}())
llg, _, _ := leecherLeecher.AddTorrentSpec(func() (ret *TorrentSpec) {
ret = TorrentSpecFromMetaInfo(mi)
ret.ChunkSize = 3
return
}())
// Simultaneously DownloadAll in Leecher, and read the contents
// consecutively in LeecherLeecher. This non-deterministically triggered a
// case where the leecher wouldn't unchoke the LeecherLeecher.
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
r := llg.NewReader()
defer r.Close()
b, err := ioutil.ReadAll(r)
require.NoError(t, err)
assert.EqualValues(t, testutil.GreetingFileContents, b)
}()
addClientPeer(leecherGreeting, seeder)
addClientPeer(leecherGreeting, leecherLeecher)
wg.Add(1)
go func() {
defer wg.Done()
leecherGreeting.DownloadAll()
leecher.WaitAll()
}()
wg.Wait()
}
func TestMergingTrackersByAddingSpecs(t *testing.T) {
cl, err := NewClient(&TestingConfig)
require.NoError(t, err)
defer cl.Close()
spec := TorrentSpec{}
T, new, _ := cl.AddTorrentSpec(&spec)
if !new {
t.FailNow()
}
spec.Trackers = [][]string{{"http://a"}, {"udp://b"}}
_, new, _ = cl.AddTorrentSpec(&spec)
assert.False(t, new)
assert.EqualValues(t, [][]string{{"http://a"}, {"udp://b"}}, T.metainfo.AnnounceList)
// Because trackers are disabled in TestingConfig.
assert.EqualValues(t, 0, len(T.trackerAnnouncers))
}
type badStorage struct{}
func (bs badStorage) OpenTorrent(*metainfo.Info, metainfo.Hash) (storage.TorrentImpl, error) {
return bs, nil
}
func (bs badStorage) Close() error {
return nil
}
func (bs badStorage) Piece(p metainfo.Piece) storage.PieceImpl {
return badStoragePiece{p}
}
type badStoragePiece struct {
p metainfo.Piece
}
func (p badStoragePiece) WriteAt(b []byte, off int64) (int, error) {
return 0, nil
}
func (p badStoragePiece) GetIsComplete() bool {
return true
}
func (p badStoragePiece) MarkComplete() error {
return errors.New("psyyyyyyyche")
}
func (p badStoragePiece) MarkNotComplete() error {
return errors.New("psyyyyyyyche")
}
func (p badStoragePiece) randomlyTruncatedDataString() string {
return "hello, world\n"[:rand.Intn(14)]
}
func (p badStoragePiece) ReadAt(b []byte, off int64) (n int, err error) {
r := strings.NewReader(p.randomlyTruncatedDataString())
return r.ReadAt(b, off+p.p.Offset())
}
// We read from a piece which is marked completed, but is missing data.
func TestCompletedPieceWrongSize(t *testing.T) {
cfg := TestingConfig
cfg.DefaultStorage = badStorage{}
cl, err := NewClient(&cfg)
require.NoError(t, err)
defer cl.Close()
info := metainfo.Info{
PieceLength: 15,
Pieces: make([]byte, 20),
Files: []metainfo.FileInfo{
metainfo.FileInfo{Path: []string{"greeting"}, Length: 13},
},
}
b, err := bencode.Marshal(info)
tt, new, err := cl.AddTorrentSpec(&TorrentSpec{
InfoBytes: b,
InfoHash: metainfo.HashBytes(b),
})
require.NoError(t, err)
defer tt.Drop()
assert.True(t, new)
r := tt.NewReader()
defer r.Close()
b, err = ioutil.ReadAll(r)
assert.Len(t, b, 13)
assert.NoError(t, err)
}
func BenchmarkAddLargeTorrent(b *testing.B) {
cfg := TestingConfig
cfg.DisableTCP = true
cfg.DisableUTP = true
cfg.ListenAddr = "redonk"
cl, err := NewClient(&cfg)
require.NoError(b, err)
defer cl.Close()
for range iter.N(b.N) {
t, err := cl.AddTorrentFromFile("testdata/bootstrap.dat.torrent")
if err != nil {
b.Fatal(err)
}
t.Drop()
}
}
func TestResponsive(t *testing.T) {
seederDataDir, mi := testutil.GreetingTestTorrent()
defer os.RemoveAll(seederDataDir)
cfg := TestingConfig
cfg.Seed = true
cfg.DataDir = seederDataDir
seeder, err := NewClient(&cfg)
require.Nil(t, err)
defer seeder.Close()
seeder.AddTorrentSpec(TorrentSpecFromMetaInfo(mi))
leecherDataDir, err := ioutil.TempDir("", "")
require.Nil(t, err)
defer os.RemoveAll(leecherDataDir)
cfg = TestingConfig
cfg.DataDir = leecherDataDir
leecher, err := NewClient(&cfg)
require.Nil(t, err)
defer leecher.Close()
leecherTorrent, _, _ := leecher.AddTorrentSpec(func() (ret *TorrentSpec) {
ret = TorrentSpecFromMetaInfo(mi)
ret.ChunkSize = 2
return
}())
addClientPeer(leecherTorrent, seeder)
reader := leecherTorrent.NewReader()
defer reader.Close()
reader.SetReadahead(0)
reader.SetResponsive()
b := make([]byte, 2)
_, err = reader.Seek(3, os.SEEK_SET)
require.NoError(t, err)
_, err = io.ReadFull(reader, b)
assert.Nil(t, err)
assert.EqualValues(t, "lo", string(b))
_, err = reader.Seek(11, os.SEEK_SET)
require.NoError(t, err)
n, err := io.ReadFull(reader, b)
assert.Nil(t, err)
assert.EqualValues(t, 2, n)
assert.EqualValues(t, "d\n", string(b))
}
func TestTorrentDroppedDuringResponsiveRead(t *testing.T) {
seederDataDir, mi := testutil.GreetingTestTorrent()
defer os.RemoveAll(seederDataDir)
cfg := TestingConfig
cfg.Seed = true
cfg.DataDir = seederDataDir
seeder, err := NewClient(&cfg)
require.Nil(t, err)
defer seeder.Close()
seeder.AddTorrentSpec(TorrentSpecFromMetaInfo(mi))
leecherDataDir, err := ioutil.TempDir("", "")
require.Nil(t, err)
defer os.RemoveAll(leecherDataDir)
cfg = TestingConfig
cfg.DataDir = leecherDataDir
leecher, err := NewClient(&cfg)
require.Nil(t, err)
defer leecher.Close()
leecherTorrent, _, _ := leecher.AddTorrentSpec(func() (ret *TorrentSpec) {
ret = TorrentSpecFromMetaInfo(mi)
ret.ChunkSize = 2
return
}())
addClientPeer(leecherTorrent, seeder)
reader := leecherTorrent.NewReader()
defer reader.Close()
reader.SetReadahead(0)
reader.SetResponsive()
b := make([]byte, 2)
_, err = reader.Seek(3, os.SEEK_SET)
require.NoError(t, err)
_, err = io.ReadFull(reader, b)
assert.Nil(t, err)
assert.EqualValues(t, "lo", string(b))
go leecherTorrent.Drop()
_, err = reader.Seek(11, os.SEEK_SET)
require.NoError(t, err)
n, err := reader.Read(b)
assert.EqualError(t, err, "torrent closed")
assert.EqualValues(t, 0, n)
}
func TestDHTInheritBlocklist(t *testing.T) {
ipl := iplist.New(nil)
require.NotNil(t, ipl)
cfg := TestingConfig
cfg.IPBlocklist = ipl
cfg.NoDHT = false
cl, err := NewClient(&cfg)
require.NoError(t, err)
defer cl.Close()
require.Equal(t, ipl, cl.DHT().IPBlocklist())
}
// Check that stuff is merged in subsequent AddTorrentSpec for the same
// infohash.
func TestAddTorrentSpecMerging(t *testing.T) {
cl, err := NewClient(&TestingConfig)
require.NoError(t, err)
defer cl.Close()
dir, mi := testutil.GreetingTestTorrent()
defer os.RemoveAll(dir)
tt, new, err := cl.AddTorrentSpec(&TorrentSpec{
InfoHash: mi.HashInfoBytes(),
})
require.NoError(t, err)
require.True(t, new)
require.Nil(t, tt.Info())
_, new, err = cl.AddTorrentSpec(TorrentSpecFromMetaInfo(mi))
require.NoError(t, err)
require.False(t, new)
require.NotNil(t, tt.Info())
}
func TestTorrentDroppedBeforeGotInfo(t *testing.T) {
dir, mi := testutil.GreetingTestTorrent()
os.RemoveAll(dir)
cl, _ := NewClient(&TestingConfig)
defer cl.Close()
tt, _, _ := cl.AddTorrentSpec(&TorrentSpec{
InfoHash: mi.HashInfoBytes(),
})
tt.Drop()
assert.EqualValues(t, 0, len(cl.Torrents()))
select {
case <-tt.GotInfo():
t.FailNow()
default:
}
}
func writeTorrentData(ts *storage.Torrent, info metainfo.Info, b []byte) {
for i := range iter.N(info.NumPieces()) {
p := info.Piece(i)
ts.Piece(p).WriteAt(b[p.Offset():p.Offset()+p.Length()], 0)
}
}
func testAddTorrentPriorPieceCompletion(t *testing.T, alreadyCompleted bool, csf func(*filecache.Cache) storage.ClientImpl) {
fileCacheDir, err := ioutil.TempDir("", "")
require.NoError(t, err)
defer os.RemoveAll(fileCacheDir)
fileCache, err := filecache.NewCache(fileCacheDir)
require.NoError(t, err)
greetingDataTempDir, greetingMetainfo := testutil.GreetingTestTorrent()
defer os.RemoveAll(greetingDataTempDir)
filePieceStore := csf(fileCache)
info, err := greetingMetainfo.UnmarshalInfo()
require.NoError(t, err)
ih := greetingMetainfo.HashInfoBytes()
greetingData, err := storage.NewClient(filePieceStore).OpenTorrent(&info, ih)
require.NoError(t, err)
writeTorrentData(greetingData, info, []byte(testutil.GreetingFileContents))
// require.Equal(t, len(testutil.GreetingFileContents), written)
// require.NoError(t, err)
for i := 0; i < info.NumPieces(); i++ {
p := info.Piece(i)
if alreadyCompleted {
err := greetingData.Piece(p).MarkComplete()
assert.NoError(t, err)
}
}
cfg := TestingConfig
// TODO: Disable network option?
cfg.DisableTCP = true
cfg.DisableUTP = true
cfg.DefaultStorage = filePieceStore
cl, err := NewClient(&cfg)
require.NoError(t, err)
defer cl.Close()
tt, err := cl.AddTorrent(greetingMetainfo)
require.NoError(t, err)
psrs := tt.PieceStateRuns()
assert.Len(t, psrs, 1)
assert.EqualValues(t, 3, psrs[0].Length)
assert.Equal(t, alreadyCompleted, psrs[0].Complete)
if alreadyCompleted {
r := tt.NewReader()
b, err := ioutil.ReadAll(r)
assert.NoError(t, err)
assert.EqualValues(t, testutil.GreetingFileContents, b)
}
}
func TestAddTorrentPiecesAlreadyCompleted(t *testing.T) {
testAddTorrentPriorPieceCompletion(t, true, fileCachePieceFileStorage)
testAddTorrentPriorPieceCompletion(t, true, fileCachePieceResourceStorage)
}
func TestAddTorrentPiecesNotAlreadyCompleted(t *testing.T) {
testAddTorrentPriorPieceCompletion(t, false, fileCachePieceFileStorage)
testAddTorrentPriorPieceCompletion(t, false, fileCachePieceResourceStorage)
}
func TestAddMetainfoWithNodes(t *testing.T) {
cfg := TestingConfig
cfg.NoDHT = false
// For now, we want to just jam the nodes into the table, without
// verifying them first. Also the DHT code doesn't support mixing secure
// and insecure nodes if security is enabled (yet).
cfg.DHTConfig.NoSecurity = true
cl, err := NewClient(&cfg)
require.NoError(t, err)
defer cl.Close()
assert.EqualValues(t, cl.DHT().NumNodes(), 0)
tt, err := cl.AddTorrentFromFile("metainfo/testdata/issue_65a.torrent")
require.NoError(t, err)
assert.Len(t, tt.metainfo.AnnounceList, 5)
assert.EqualValues(t, 6, cl.DHT().NumNodes())
}
type testDownloadCancelParams struct {
ExportClientStatus bool
SetLeecherStorageCapacity bool
LeecherStorageCapacity int64
Cancel bool
}
func testDownloadCancel(t *testing.T, ps testDownloadCancelParams) {
greetingTempDir, mi := testutil.GreetingTestTorrent()
defer os.RemoveAll(greetingTempDir)
cfg := TestingConfig
cfg.Seed = true
cfg.DataDir = greetingTempDir
seeder, err := NewClient(&cfg)
require.NoError(t, err)
defer seeder.Close()
if ps.ExportClientStatus {
testutil.ExportStatusWriter(seeder, "s")
}
seeder.AddTorrentSpec(TorrentSpecFromMetaInfo(mi))
leecherDataDir, err := ioutil.TempDir("", "")
require.NoError(t, err)
defer os.RemoveAll(leecherDataDir)
fc, err := filecache.NewCache(leecherDataDir)
require.NoError(t, err)
if ps.SetLeecherStorageCapacity {
fc.SetCapacity(ps.LeecherStorageCapacity)
}
cfg.DefaultStorage = storage.NewFileStorePieces(fc.AsFileStore())
cfg.DataDir = leecherDataDir
leecher, _ := NewClient(&cfg)
defer leecher.Close()
if ps.ExportClientStatus {
testutil.ExportStatusWriter(leecher, "l")
}
leecherGreeting, new, err := leecher.AddTorrentSpec(func() (ret *TorrentSpec) {
ret = TorrentSpecFromMetaInfo(mi)
ret.ChunkSize = 2
return
}())
require.NoError(t, err)
assert.True(t, new)
psc := leecherGreeting.SubscribePieceStateChanges()
defer psc.Close()
leecherGreeting.DownloadAll()
if ps.Cancel {
leecherGreeting.CancelPieces(0, leecherGreeting.NumPieces())
}
addClientPeer(leecherGreeting, seeder)
completes := make(map[int]bool, 3)
values:
for {
// started := time.Now()
select {
case _v := <-psc.Values:
// log.Print(time.Since(started))
v := _v.(PieceStateChange)
completes[v.Index] = v.Complete
case <-time.After(100 * time.Millisecond):
break values
}
}
if ps.Cancel {
assert.EqualValues(t, map[int]bool{0: false, 1: false, 2: false}, completes)
} else {
assert.EqualValues(t, map[int]bool{0: true, 1: true, 2: true}, completes)
}
}
func TestTorrentDownloadAll(t *testing.T) {
testDownloadCancel(t, testDownloadCancelParams{})
}
func TestTorrentDownloadAllThenCancel(t *testing.T) {
testDownloadCancel(t, testDownloadCancelParams{
Cancel: true,
})
}
// Ensure that it's an error for a peer to send an invalid have message.
func TestPeerInvalidHave(t *testing.T) {
cl, err := NewClient(&TestingConfig)
require.NoError(t, err)
defer cl.Close()
info := metainfo.Info{
PieceLength: 1,
Pieces: make([]byte, 20),
Files: []metainfo.FileInfo{{Length: 1}},
}
infoBytes, err := bencode.Marshal(info)
require.NoError(t, err)
tt, _new, err := cl.AddTorrentSpec(&TorrentSpec{
InfoBytes: infoBytes,
InfoHash: metainfo.HashBytes(infoBytes),
})
require.NoError(t, err)
assert.True(t, _new)
defer tt.Drop()
cn := &connection{
t: tt,
}
assert.NoError(t, cn.peerSentHave(0))
assert.Error(t, cn.peerSentHave(1))
}
func TestPieceCompletedInStorageButNotClient(t *testing.T) {
greetingTempDir, greetingMetainfo := testutil.GreetingTestTorrent()
defer os.RemoveAll(greetingTempDir)
cfg := TestingConfig
cfg.DataDir = greetingTempDir
seeder, err := NewClient(&TestingConfig)
require.NoError(t, err)
seeder.AddTorrentSpec(&TorrentSpec{
InfoBytes: greetingMetainfo.InfoBytes,
})
}
func TestPrepareTrackerAnnounce(t *testing.T) {
cl := &Client{}
blocked, urlToUse, host, err := cl.prepareTrackerAnnounceUnlocked("http://localhost:1234/announce?herp")
require.NoError(t, err)
assert.False(t, blocked)
assert.EqualValues(t, "localhost:1234", host)
assert.EqualValues(t, "http://127.0.0.1:1234/announce?herp", urlToUse)
}
// Check that when the listen port is 0, all the protocols listened on have
// the same port, and it isn't zero.
func TestClientDynamicListenPortAllProtocols(t *testing.T) {
cl, err := NewClient(&TestingConfig)
require.NoError(t, err)
defer cl.Close()
assert.NotEqual(t, 0, missinggo.AddrPort(cl.ListenAddr()))
assert.Equal(t, missinggo.AddrPort(cl.utpSock.Addr()), missinggo.AddrPort(cl.tcpListener.Addr()))
}
func TestClientDynamicListenTCPOnly(t *testing.T) {
cfg := TestingConfig
cfg.DisableUTP = true
cl, err := NewClient(&cfg)
require.NoError(t, err)
defer cl.Close()
assert.NotEqual(t, 0, missinggo.AddrPort(cl.ListenAddr()))
assert.Nil(t, cl.utpSock)
}
func TestClientDynamicListenUTPOnly(t *testing.T) {
cfg := TestingConfig
cfg.DisableTCP = true
cl, err := NewClient(&cfg)
require.NoError(t, err)
defer cl.Close()
assert.NotEqual(t, 0, missinggo.AddrPort(cl.ListenAddr()))
assert.Nil(t, cl.tcpListener)
}
func TestClientDynamicListenPortNoProtocols(t *testing.T) {
cfg := TestingConfig
cfg.DisableTCP = true
cfg.DisableUTP = true
cl, err := NewClient(&cfg)
require.NoError(t, err)
defer cl.Close()
assert.Nil(t, cl.ListenAddr())
}
func addClientPeer(t *Torrent, cl *Client) {
t.AddPeers([]Peer{
Peer{
IP: missinggo.AddrIP(cl.ListenAddr()),
Port: missinggo.AddrPort(cl.ListenAddr()),
},
})