671 lines
17 KiB
Go
671 lines
17 KiB
Go
package torrent
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import (
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"encoding/binary"
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"fmt"
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"io"
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"io/ioutil"
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"log"
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"net"
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"os"
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"path/filepath"
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"sync"
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"testing"
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"time"
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_ "github.com/anacrolix/envpprof"
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"github.com/anacrolix/missinggo"
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. "github.com/anacrolix/missinggo"
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"github.com/anacrolix/missinggo/filecache"
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"github.com/anacrolix/utp"
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"github.com/bradfitz/iter"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/anacrolix/torrent/bencode"
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"github.com/anacrolix/torrent/data/pieceStore"
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"github.com/anacrolix/torrent/data/pieceStore/dataBackend/fileCache"
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"github.com/anacrolix/torrent/dht"
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"github.com/anacrolix/torrent/internal/testutil"
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"github.com/anacrolix/torrent/iplist"
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"github.com/anacrolix/torrent/metainfo"
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)
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func init() {
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log.SetFlags(log.LstdFlags | log.Llongfile)
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}
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var TestingConfig = Config{
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ListenAddr: "localhost:0",
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NoDHT: true,
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DisableTrackers: true,
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NoDefaultBlocklist: true,
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DisableMetainfoCache: true,
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DataDir: filepath.Join(os.TempDir(), "anacrolix"),
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DHTConfig: dht.ServerConfig{
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NoDefaultBootstrap: true,
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},
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}
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func TestClientDefault(t *testing.T) {
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cl, err := NewClient(&TestingConfig)
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if err != nil {
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t.Fatal(err)
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}
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cl.Close()
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}
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func TestAddDropTorrent(t *testing.T) {
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cl, err := NewClient(&TestingConfig)
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if err != nil {
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t.Fatal(err)
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}
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defer cl.Close()
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dir, mi := testutil.GreetingTestTorrent()
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defer os.RemoveAll(dir)
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tt, new, err := cl.AddTorrentSpec(TorrentSpecFromMetaInfo(mi))
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if err != nil {
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t.Fatal(err)
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}
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if !new {
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t.FailNow()
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}
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tt.Drop()
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}
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func TestAddTorrentNoSupportedTrackerSchemes(t *testing.T) {
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t.SkipNow()
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}
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func TestAddTorrentNoUsableURLs(t *testing.T) {
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t.SkipNow()
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}
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func TestAddPeersToUnknownTorrent(t *testing.T) {
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t.SkipNow()
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}
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func TestPieceHashSize(t *testing.T) {
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if pieceHash.Size() != 20 {
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t.FailNow()
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}
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}
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func TestTorrentInitialState(t *testing.T) {
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dir, mi := testutil.GreetingTestTorrent()
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defer os.RemoveAll(dir)
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tor, err := newTorrent(func() (ih InfoHash) {
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missinggo.CopyExact(ih[:], mi.Info.Hash)
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return
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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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tor.chunkSize = 2
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err = tor.setMetadata(&mi.Info.Info, mi.Info.Bytes)
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if err != nil {
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t.Fatal(err)
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}
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if len(tor.Pieces) != 3 {
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t.Fatal("wrong number of pieces")
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}
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tor.pendAllChunkSpecs(0)
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assert.EqualValues(t, 3, tor.pieceNumPendingChunks(0))
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assert.EqualValues(t, chunkSpec{4, 1}, chunkIndexSpec(2, tor.pieceLength(0), tor.chunkSize))
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}
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func TestUnmarshalPEXMsg(t *testing.T) {
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var m peerExchangeMessage
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if err := bencode.Unmarshal([]byte("d5:added12:\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0ce"), &m); err != nil {
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t.Fatal(err)
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}
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if len(m.Added) != 2 {
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t.FailNow()
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}
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if m.Added[0].Port != 0x506 {
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t.FailNow()
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}
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}
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func TestReducedDialTimeout(t *testing.T) {
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for _, _case := range []struct {
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Max time.Duration
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HalfOpenLimit int
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PendingPeers int
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ExpectedReduced time.Duration
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}{
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{nominalDialTimeout, 40, 0, nominalDialTimeout},
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{nominalDialTimeout, 40, 1, nominalDialTimeout},
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{nominalDialTimeout, 40, 39, nominalDialTimeout},
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{nominalDialTimeout, 40, 40, nominalDialTimeout / 2},
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{nominalDialTimeout, 40, 80, nominalDialTimeout / 3},
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{nominalDialTimeout, 40, 4000, nominalDialTimeout / 101},
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} {
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reduced := reducedDialTimeout(_case.Max, _case.HalfOpenLimit, _case.PendingPeers)
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expected := _case.ExpectedReduced
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if expected < minDialTimeout {
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expected = minDialTimeout
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}
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if reduced != expected {
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t.Fatalf("expected %s, got %s", _case.ExpectedReduced, reduced)
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}
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}
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}
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func TestUTPRawConn(t *testing.T) {
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l, err := utp.NewSocket("udp", "")
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if err != nil {
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t.Fatal(err)
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}
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defer l.Close()
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go func() {
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for {
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_, err := l.Accept()
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if err != nil {
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break
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}
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}
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}()
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// Connect a UTP peer to see if the RawConn will still work.
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s, _ := utp.NewSocket("udp", "")
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defer s.Close()
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utpPeer, err := s.Dial(fmt.Sprintf("localhost:%d", missinggo.AddrPort(l.Addr())))
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if err != nil {
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t.Fatalf("error dialing utp listener: %s", err)
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}
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defer utpPeer.Close()
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peer, err := net.ListenPacket("udp", ":0")
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if err != nil {
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t.Fatal(err)
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}
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defer peer.Close()
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msgsReceived := 0
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// How many messages to send. I've set this to double the channel buffer
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// size in the raw packetConn.
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const N = 200
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readerStopped := make(chan struct{})
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// The reader goroutine.
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go func() {
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defer close(readerStopped)
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b := make([]byte, 500)
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for i := 0; i < N; i++ {
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n, _, err := l.ReadFrom(b)
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if err != nil {
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t.Fatalf("error reading from raw conn: %s", err)
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}
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msgsReceived++
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var d int
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fmt.Sscan(string(b[:n]), &d)
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if d != i {
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log.Printf("got wrong number: expected %d, got %d", i, d)
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}
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}
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}()
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udpAddr, err := net.ResolveUDPAddr("udp", fmt.Sprintf("localhost:%d", missinggo.AddrPort(l.Addr())))
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if err != nil {
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t.Fatal(err)
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}
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for i := 0; i < N; i++ {
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_, err := peer.WriteTo([]byte(fmt.Sprintf("%d", i)), udpAddr)
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if err != nil {
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t.Fatal(err)
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}
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time.Sleep(time.Microsecond)
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}
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select {
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case <-readerStopped:
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case <-time.After(time.Second):
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t.Fatal("reader timed out")
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}
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if msgsReceived != N {
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t.Fatalf("messages received: %d", msgsReceived)
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}
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}
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func TestTwoClientsArbitraryPorts(t *testing.T) {
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for i := 0; i < 2; i++ {
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cl, err := NewClient(&TestingConfig)
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if err != nil {
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t.Fatal(err)
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}
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defer cl.Close()
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}
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}
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func TestAddDropManyTorrents(t *testing.T) {
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cl, _ := NewClient(&TestingConfig)
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defer cl.Close()
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for i := range iter.N(1000) {
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var spec TorrentSpec
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binary.PutVarint(spec.InfoHash[:], int64(i))
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tt, new, err := cl.AddTorrentSpec(&spec)
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if err != nil {
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t.Error(err)
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}
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if !new {
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t.FailNow()
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}
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defer tt.Drop()
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}
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}
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func TestClientTransfer(t *testing.T) {
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greetingTempDir, mi := testutil.GreetingTestTorrent()
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defer os.RemoveAll(greetingTempDir)
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cfg := TestingConfig
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cfg.Seed = true
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cfg.DataDir = greetingTempDir
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seeder, err := NewClient(&cfg)
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if err != nil {
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t.Fatal(err)
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}
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defer seeder.Close()
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seeder.AddTorrentSpec(TorrentSpecFromMetaInfo(mi))
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leecherDataDir, err := ioutil.TempDir("", "")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(leecherDataDir)
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// cfg.TorrentDataOpener = func(info *metainfo.Info) (data.Data, error) {
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// return blob.TorrentData(info, leecherDataDir), nil
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// }
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// blobStore := blob.NewStore(leecherDataDir)
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// cfg.TorrentDataOpener = func(info *metainfo.Info) Data {
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// return blobStore.OpenTorrent(info)
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// }
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cfg.TorrentDataOpener = func() TorrentDataOpener {
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fc, err := filecache.NewCache(leecherDataDir)
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require.NoError(t, err)
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store := pieceStore.New(fileCacheDataBackend.New(fc))
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return func(mi *metainfo.Info) Data {
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return store.OpenTorrentData(mi)
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}
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}()
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leecher, _ := NewClient(&cfg)
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defer leecher.Close()
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leecherGreeting, _, _ := leecher.AddTorrentSpec(func() (ret *TorrentSpec) {
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ret = TorrentSpecFromMetaInfo(mi)
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ret.ChunkSize = 2
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return
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}())
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// TODO: The piece state publishing is kinda jammed in here until I have a
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// more thorough test.
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go func() {
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s := leecherGreeting.torrent.pieceStateChanges.Subscribe()
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defer s.Close()
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for i := range s.Values {
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log.Print(i)
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}
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log.Print("finished")
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}()
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leecherGreeting.AddPeers([]Peer{
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Peer{
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IP: missinggo.AddrIP(seeder.ListenAddr()),
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Port: missinggo.AddrPort(seeder.ListenAddr()),
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},
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})
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r := leecherGreeting.NewReader()
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defer r.Close()
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_greeting, err := ioutil.ReadAll(r)
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if err != nil {
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t.Fatalf("%q %s", string(_greeting), err)
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}
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greeting := string(_greeting)
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if greeting != testutil.GreetingFileContents {
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t.Fatal(":(")
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}
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}
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// Check that after completing leeching, a leecher transitions to a seeding
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// correctly. Connected in a chain like so: Seeder <-> Leecher <-> LeecherLeecher.
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func TestSeedAfterDownloading(t *testing.T) {
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greetingTempDir, mi := testutil.GreetingTestTorrent()
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defer os.RemoveAll(greetingTempDir)
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cfg := TestingConfig
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cfg.Seed = true
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cfg.DataDir = greetingTempDir
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seeder, err := NewClient(&cfg)
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defer seeder.Close()
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seeder.AddTorrentSpec(TorrentSpecFromMetaInfo(mi))
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cfg.DataDir, err = ioutil.TempDir("", "")
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require.NoError(t, err)
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defer os.RemoveAll(cfg.DataDir)
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leecher, _ := NewClient(&cfg)
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defer leecher.Close()
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cfg.Seed = false
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cfg.TorrentDataOpener = nil
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cfg.DataDir, err = ioutil.TempDir("", "")
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require.NoError(t, err)
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defer os.RemoveAll(cfg.DataDir)
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leecherLeecher, _ := NewClient(&cfg)
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defer leecherLeecher.Close()
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leecherGreeting, _, _ := leecher.AddTorrentSpec(func() (ret *TorrentSpec) {
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ret = TorrentSpecFromMetaInfo(mi)
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ret.ChunkSize = 2
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return
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}())
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llg, _, _ := leecherLeecher.AddTorrentSpec(func() (ret *TorrentSpec) {
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ret = TorrentSpecFromMetaInfo(mi)
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ret.ChunkSize = 3
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return
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}())
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// Simultaneously DownloadAll in Leecher, and read the contents
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// consecutively in LeecherLeecher. This non-deterministically triggered a
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// case where the leecher wouldn't unchoke the LeecherLeecher.
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var wg sync.WaitGroup
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wg.Add(1)
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go func() {
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defer wg.Done()
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r := llg.NewReader()
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defer r.Close()
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b, err := ioutil.ReadAll(r)
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require.NoError(t, err)
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require.EqualValues(t, testutil.GreetingFileContents, b)
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}()
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leecherGreeting.AddPeers([]Peer{
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Peer{
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IP: missinggo.AddrIP(seeder.ListenAddr()),
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Port: missinggo.AddrPort(seeder.ListenAddr()),
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},
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Peer{
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IP: missinggo.AddrIP(leecherLeecher.ListenAddr()),
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Port: missinggo.AddrPort(leecherLeecher.ListenAddr()),
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},
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})
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wg.Add(1)
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go func() {
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defer wg.Done()
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leecherGreeting.DownloadAll()
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leecher.WaitAll()
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}()
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wg.Wait()
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}
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func TestReadaheadPieces(t *testing.T) {
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for _, case_ := range []struct {
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readaheadBytes, pieceLength int64
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readaheadPieces int
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}{
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{5 * 1024 * 1024, 256 * 1024, 19},
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{5 * 1024 * 1024, 5 * 1024 * 1024, 1},
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{5*1024*1024 - 1, 5 * 1024 * 1024, 1},
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{5 * 1024 * 1024, 5*1024*1024 - 1, 2},
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{0, 5 * 1024 * 1024, 0},
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{5 * 1024 * 1024, 1048576, 4},
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} {
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pieces := readaheadPieces(case_.readaheadBytes, case_.pieceLength)
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assert.Equal(t, case_.readaheadPieces, pieces, "%v", case_)
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}
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}
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func TestMergingTrackersByAddingSpecs(t *testing.T) {
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cl, _ := NewClient(&TestingConfig)
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defer cl.Close()
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spec := TorrentSpec{}
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T, new, _ := cl.AddTorrentSpec(&spec)
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if !new {
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t.FailNow()
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}
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spec.Trackers = [][]string{{"http://a"}, {"udp://b"}}
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_, new, _ = cl.AddTorrentSpec(&spec)
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if new {
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t.FailNow()
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}
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assert.EqualValues(t, T.torrent.Trackers[0][0].URL(), "http://a")
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assert.EqualValues(t, T.torrent.Trackers[1][0].URL(), "udp://b")
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}
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type badData struct{}
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func (me badData) Close() {}
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func (me badData) WriteAt(b []byte, off int64) (int, error) {
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return 0, nil
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}
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func (me badData) WriteSectionTo(w io.Writer, off, n int64) (int64, error) {
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return 0, nil
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}
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func (me badData) PieceComplete(piece int) bool {
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return true
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}
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func (me badData) PieceCompleted(piece int) error {
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return nil
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}
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func (me badData) ReadAt(b []byte, off int64) (n int, err error) {
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if off >= 5 {
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err = io.EOF
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return
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}
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n = copy(b, []byte("hello")[off:])
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return
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}
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// We read from a piece which is marked completed, but is missing data.
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func TestCompletedPieceWrongSize(t *testing.T) {
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cfg := TestingConfig
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cfg.TorrentDataOpener = func(*metainfo.Info) Data {
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return badData{}
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}
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cl, _ := NewClient(&cfg)
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defer cl.Close()
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tt, new, err := cl.AddTorrentSpec(&TorrentSpec{
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Info: &metainfo.InfoEx{
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Info: metainfo.Info{
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PieceLength: 15,
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Pieces: make([]byte, 20),
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Files: []metainfo.FileInfo{
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metainfo.FileInfo{Path: []string{"greeting"}, Length: 13},
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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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if !new {
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t.Fatal("expected new")
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}
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r := tt.NewReader()
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defer r.Close()
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b := make([]byte, 20)
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n, err := io.ReadFull(r, b)
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if n != 5 || err != io.ErrUnexpectedEOF {
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t.Fatal(n, err)
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}
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defer tt.Drop()
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}
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func BenchmarkAddLargeTorrent(b *testing.B) {
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cfg := TestingConfig
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cfg.DisableTCP = true
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cfg.DisableUTP = true
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cfg.ListenAddr = "redonk"
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cl, _ := NewClient(&cfg)
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defer cl.Close()
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for range iter.N(b.N) {
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t, err := cl.AddTorrentFromFile("testdata/bootstrap.dat.torrent")
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if err != nil {
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b.Fatal(err)
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}
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t.Drop()
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}
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}
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func TestResponsive(t *testing.T) {
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seederDataDir, mi := testutil.GreetingTestTorrent()
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defer os.RemoveAll(seederDataDir)
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cfg := TestingConfig
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cfg.Seed = true
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cfg.DataDir = seederDataDir
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seeder, err := NewClient(&cfg)
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require.Nil(t, err)
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defer seeder.Close()
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seeder.AddTorrentSpec(TorrentSpecFromMetaInfo(mi))
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leecherDataDir, err := ioutil.TempDir("", "")
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require.Nil(t, err)
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defer os.RemoveAll(leecherDataDir)
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cfg = TestingConfig
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cfg.DataDir = leecherDataDir
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leecher, err := NewClient(&cfg)
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require.Nil(t, err)
|
|
defer leecher.Close()
|
|
leecherTorrent, _, _ := leecher.AddTorrentSpec(func() (ret *TorrentSpec) {
|
|
ret = TorrentSpecFromMetaInfo(mi)
|
|
ret.ChunkSize = 2
|
|
return
|
|
}())
|
|
leecherTorrent.AddPeers([]Peer{
|
|
Peer{
|
|
IP: missinggo.AddrIP(seeder.ListenAddr()),
|
|
Port: missinggo.AddrPort(seeder.ListenAddr()),
|
|
},
|
|
})
|
|
reader := leecherTorrent.NewReader()
|
|
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
|
|
}())
|
|
leecherTorrent.AddPeers([]Peer{
|
|
Peer{
|
|
IP: missinggo.AddrIP(seeder.ListenAddr()),
|
|
Port: missinggo.AddrPort(seeder.ListenAddr()),
|
|
},
|
|
})
|
|
reader := leecherTorrent.NewReader()
|
|
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)
|
|
var ts TorrentSpec
|
|
missinggo.CopyExact(&ts.InfoHash, mi.Info.Hash)
|
|
tt, new, err := cl.AddTorrentSpec(&ts)
|
|
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())
|
|
}
|
|
|
|
// Check that torrent Info is obtained from the metainfo file cache.
|
|
func TestAddTorrentMetainfoInCache(t *testing.T) {
|
|
cfg := TestingConfig
|
|
cfg.DisableMetainfoCache = false
|
|
cfg.ConfigDir, _ = ioutil.TempDir(os.TempDir(), "")
|
|
defer os.RemoveAll(cfg.ConfigDir)
|
|
cl, err := NewClient(&cfg)
|
|
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)
|
|
require.True(t, new)
|
|
require.NotNil(t, tt.Info())
|
|
_, err = os.Stat(filepath.Join(cfg.ConfigDir, "torrents", fmt.Sprintf("%x.torrent", mi.Info.Hash)))
|
|
require.NoError(t, err)
|
|
// Contains only the infohash.
|
|
var ts TorrentSpec
|
|
missinggo.CopyExact(&ts.InfoHash, mi.Info.Hash)
|
|
_, ok := cl.Torrent(ts.InfoHash)
|
|
require.True(t, ok)
|
|
tt.Drop()
|
|
_, ok = cl.Torrent(ts.InfoHash)
|
|
require.False(t, ok)
|
|
tt, new, err = cl.AddTorrentSpec(&ts)
|
|
require.NoError(t, err)
|
|
require.True(t, new)
|
|
// Obtained from the metainfo cache.
|
|
require.NotNil(t, tt.Info())
|
|
}
|
|
|
|
func TestTorrentDroppedBeforeGotInfo(t *testing.T) {
|
|
dir, mi := testutil.GreetingTestTorrent()
|
|
os.RemoveAll(dir)
|
|
cl, _ := NewClient(&TestingConfig)
|
|
defer cl.Close()
|
|
var ts TorrentSpec
|
|
CopyExact(&ts.InfoHash, mi.Info.Hash)
|
|
tt, _, _ := cl.AddTorrentSpec(&ts)
|
|
tt.Drop()
|
|
assert.EqualValues(t, 0, len(cl.Torrents()))
|
|
select {
|
|
case <-tt.GotInfo():
|
|
t.FailNow()
|
|
default:
|
|
}
|
|
}
|